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10 tháng 3 2020

1. How often is the Flower Festival celebrated?

2. What do you always have on Thanksgiving?

3. Who did Manh went to Da Nang with last month?

4. When do they go to the English club?

5. Whose are these pictures?

6. How was your little sister when she crossed the road?

7. What is her son going to do?

8. Why do people organize this festival?

9. Which do they prefer, computer games or video games?

10. How long does the festival last?

10 tháng 3 2020

Đặt câu hỏi cho phần in đậm

1. The Flower Festival is celebrated every year .

--> When is the Flower Festival celebrated ?

2. We always have turkey on Thanksgiving .

--> What do we always have on Thanksgiving ?

3. Manh went to Da Nang with his parents last month .

--> Who did Manh go to Da Nang with last month ?

4. They go to the English club on Thursday afternoon .

--> When do they go to the English club ?

5. These are my brother's picture .

--> Whose picture are these ?

6. My little sister was scared when she crossed the road .

--> How did my little sister feel when she crossed the road ?

7. Her son is going to mend his bike .

--> What is her son going to ?

8. People organize this festival to pray for better crops .

--> What do people organize this festival ?

9. They prefer computer games to video games .

--> What do they prefer ?

10. The festival lasts only one hour and a half .

--> How long does the festival last ?

14 tháng 5 2017

1. The flower festival is celebrated every year .

=> How often does the flower festival celebrate

2. We always have turkey on Thanksgiving.

=> What does you always have on Thanksgiving

3. Peter went to Da Nang last month with his parents.

=> Who did Peter go to Da Nang last month with ?

4. These are my brother's pictures.

=> Who does these pictures belong to ?

5. The Elephant Race Festival will be held in Don village next year .

=> When will the Elephant Race Festival be held in Don village ?

14 tháng 5 2017

Đặt câu hỏi cho phần in đậm của các câu sau đây.

1. The flower festival is celebrated every year .

=> How often is the flower festival celebrated ?

2. We always have turkey on Thanksgiving.

=> What do you always have on Thanksgiving ?

3. Peter went to Da Nang last month with his parents.

=> Who did Peter go to Da Nang last month with ?

4. These are my brother's pictures.

=> Whose are these pictures ?

5. The Elephant Race Festival will be held in Don village next year .

=> When will the Elephant Race Festival be held in Don village ?

23 tháng 6 2019

Ex1:Turn the following sentences into the passive

1.They will destroy the old thermal power plant at the end of this year

=> the old thermal power plant will be destroyed at the end of this year

2.We will be using biogas for cooking and heating at this time next month

=>biogas will be used for cooking and heating at this time next month

3.People won't burn fossil fuels for energy in the future.

=>fossil fuels won't be burnt for energy in the future.

4. Shall we reduce our electricity bills to 20% in five months ?

=>Shall our lectricity bills be reduced to 20% in five months ?

5.We will be providing electricity this time next year

=> electricity will be provided this time next year

Ex2:Make questions for underlined parts of the following sentences

1.The Flower Festival is celebrated every year

=>when is the flower festival celebrated?

2. We always have turkey on Thanksgiving

=>what do you always have on Thanksgiving?

3.Peter went to Da Nang last month with his parents

=>who did peter go to DN last month with?

4.They participated in La Tomatina in 2013

=>when did they participate in la tomatina?

5.These are my brother's picture

==>whose picture are these?

6.The Elephant Race Festival will be held in Don village next year

=>where will The Elephant Race Festival be held next year?

23 tháng 6 2019

Ex 2

Câu 1: How often có vẻ đúng hơn nhỉ?

Đặt câu hỏi cho phần in đậm: 1.Dien Bien Phu is only 30 kilometers from the Lao's bored =>............................................. 2.Thomas Edison was known all over the world because he invited the electric light buld. =>.................................. 3.David is going to invent a new computer game. =>................................ 4.Hoa was scared when she crossed the road. =>......................................... 5.The new bike costs two million...
Đọc tiếp

Đặt câu hỏi cho phần in đậm:

1.Dien Bien Phu is only 30 kilometers from the Lao's bored

=>.............................................

2.Thomas Edison was known all over the world because he invited the electric light buld.

=>..................................

3.David is going to invent a new computer game.

=>................................

4.Hoa was scared when she crossed the road.

=>.........................................

5.The new bike costs two million dong.

=>....................................

6.No, he doesn't play video games too much.

=>............................................

7.She goes to the public library twice a week.

=>............................................

8.I spend about one hour a day playing computer games.

=>...................................................

9.Hoa likes TV game shows best.

=>..................................

10.We can meet in front of the movie theater at 7.30.

=>.........................................

2
15 tháng 2 2017

Đặt câu hỏi cho phần in đậm:

1.Dien Bien Phu is only 30 kilometers from the Lao's bored

=> how far is it from Lao's bored to Dien Bien Phu?

2.Thomas Edison was known all over the world because he invented the electric light buld.

=>why was Thomas Edison known all over the world?

3.David is going to invent a new computer game.

=>what is David going to do?

4.Hoa was scared when she crossed the road.

=>how was Hoa when she crossed the road?

5.The new bike costs two million dong.

=>how much is the new bike?

6.No, he doesn't play video games too much.

=>does he play video games too much?

7.She goes to the public library twice a week.

=>how often does she go to the public library?

8.I spend about one hour a day playing computer games.

=>how many hours a day do you spend playing computer games?

9.Hoa likes TV game shows best.

=>what kind of program does hoa like best?

10.We can meet in front of the movie theater at 7.30.

=>what time can we meet in front of the movie theater?

15 tháng 2 2017

1.Dien Bien Phu is only 30 kilometers from the Lao's bored

=> HOW FAR IS IT FROM LAO'S BORED TO DIEN BIEN PHU ?

2.Thomas Edison was known all over the world because he invited the electric light buld.

=> WHY WAS THOMAS EDISON KNOWN ALL OVER THE WORD ?

3.David is going to invent a new computer game.

=> WHAT IS DAVID IS GOING TO DO ?

4.Hoa was scared when she crossed the road.

=> HOW WAS HOA WHEN SHE CROSSED THE ROAD ?

5.The new bike costs two million dong.

=> HOW MUCH DOES THE NEW BIKE COSTS ?

6.No, he doesn't play video games too much.

=> DOES HE PLAY VIDEO GAMES TOO MUCH ?

7.She goes to the public library twice a week.

=> HOW OFTEN DOES SHE GO TO THE PUBLIC LIBRARY ?

8.I spend about one hour a day playing computer games.

=> HOW MANY HOURS A DAY DO YOU SPEND PLAYING VIDEO GAMES ?

9.Hoa likes TV game shows best.

=> WHAT KINDS OF PROGRAMME DOES HOA LIKE BEST ?

10.We can meet in front of the movie theater at 7.30.

=> WHAT TIME WE CAN MEET IN FRONT OF THE MOVIE THEATER ?

Đặt câu hỏi cho phần in đậm: 1. The buses to the city center run every fifteen minutes. => ......................................................? 2.I would like to go to Ha Long Bay for a holiday. =>.....................................................? 3. Growing children shouldn't drink coffee and tea because they are not good for their healthy. =>......................................? 4. She is 4 feet 5 inches and weighs 95 pounds....
Đọc tiếp

Đặt câu hỏi cho phần in đậm:

1. The buses to the city center run every fifteen minutes. => ......................................................?

2.I would like to go to Ha Long Bay for a holiday. =>.....................................................?

3. Growing children shouldn't drink coffee and tea because they are not good for their healthy. =>......................................?

4. She is 4 feet 5 inches and weighs 95 pounds. =>............................................................?

5. I would like to have some rice for lunch. =>............................................................?

6. I'm going to school with my friends this afternoon. =>............................................................?

7. They are talking to their friends now. =>.....................................................?

8. Vietnamese teenagers help old people by cleaning their yards or painting their houses. =>...............................................?

9. It's Thursday tomorrow. =>.............................................?

10. Lan's brother is practicing the guitar now. =>.......................................................?

11. You should invited your former classmates to your birthday party. =>.....................................................?

1
3 tháng 2 2018

Đặt câu hỏi cho phần in đậm:

1. The buses to the city center run every fifteen minutes.

=> .......How often do the buses to the city run......?

2.I would like to go to Ha Long Bay for a holiday.

=>........Where do you would like to go to for a holiday........?

3. Growing children shouldn't drink coffee and tea because they are not good for their healthy.

=>...................Why shouldn't growing children drink coffee and tea ...................?

4. She is 4 feet 5 inches and weighs 95 pounds.

=>........How tall and heavy is she ............?

5. I would like to have some rice for lunch.

=>..........What would you like to have for lunch ..........?

6. I'm going to school with my friends this afternoon.

=>.........Who are you going to school with thí afternoon? ...........?

7. They are talking to their friends now.

=>.............Who are talking to them now...............?

8. Vietnamese teenagers help old people by cleaning their yards or painting their houses.

=>....................How do Vietnamese teenagers help old people ...........................?

9. It's Thursday tomorrow.

=>........What day is it tomorrow ............?

10. Lan's brother is practicing the guitar now.

=>.................What is Lan't brother practicing now ......................................?

11. You should invited your former classmates to your birthday party.

=>...........Who should I invite to my birthday party ...............?

I. Đặt câu hỏi cho câu trả lời theo từ đã cho: 1. Last week, I stayed at home because I was sick. => Why ..................................................................................................? 2. Nam talked about his school. => What .................................................................................................? 3. Mai went to the museum yesterday afternoon. => When...
Đọc tiếp

I. Đặt câu hỏi cho câu trả lời theo từ đã cho:

1. Last week, I stayed at home because I was sick.

=> Why ..................................................................................................?

2. Nam talked about his school.

=> What .................................................................................................?

3. Mai went to the museum yesterday afternoon.

=> When ...............................................................................................?

4. My aunt went to bed at 12 o'clock last night.

=> What time ........................................................................................?

5. I went to bed early last night because I was very tired.

=> Why ................................................................................................?

6. The TV program started at 8.00.

=> When ..............................................................................................?

7. My brother started school when he was five.

=> When ..............................................................................................?

8. He stayed in bed because he had a headache.

=> Why ...............................................................................................?

9. Hoa left school when she was eighteen.

=> When .............................................................................................?

10. She spent the afternoon in the library.

=> Where ............................................................................................?

II. Tìm và sửa lỗi sai cho đúng: ( mỗi câu đều có lỗi sai)

1. Mai is a good friend of I.

=> ..........................................................................................................

2. Last week, Hoa moves to a new apartment.

=> .........................................................................................................

3. The people in Ha Noi are very friend.

=> .........................................................................................................

4. Hoa thought sew was a useful hobby.

=> ........................................................................................................

5. The children can't didn't a lot of things.

=> .......................................................................................................

6. My mother bought the material and did the dress for me.

=> .......................................................................................................

7. Lan is learning how to using a sewing machine.

=> .......................................................................................................

8. What did you bought in Nha Trang last week?

=> .......................................................................................................

III. Đặt câu hỏi cho từ in đậm:

1. Nam is doing his homework.

..............................................................................................................

2. My father traveled to Tokyo by plane.

..............................................................................................................

3. Hoa and Mai will come here tomorrow evening.

..............................................................................................................

4. My mother was in Da Nang last week.

..............................................................................................................

5. Lan left home at 6.30 yesterday morning.

..............................................................................................................

6. Hoa bought a cap in the souvenir shop.

..............................................................................................................

7. Mr. Pike taught me English last year.

.............................................................................................................

8. My new skirt is black.

.............................................................................................................

9. Mai stayed in Hue for five days.

.............................................................................................................

10. Hoa went to Ha Noi on vacation last week.

.............................................................................................................

4
16 tháng 1 2018

I. Đặt câu hỏi cho câu trả lời theo từ đã cho:

1. Last week, I stayed at home because I was sick.

=> Why did you stay at home last week?

He talked about his school.

=> What did he talk about?

3. Mai went to the museum yesterday afternoon.

=> When did Mai went to the museum ?

4. My aunt went to bed at 12 o'clock last night

=> What time did your aunt go to bed last night?

5. I went to bed early last night because I was very tired.

=> Why did you go to bed early last night?

6. The TV program started at 8.00.

=> When did the TV program start?

7. My brother started school when he was five.

=> When did your brother start school?

8. He stayed in bed because he had a headache.

=> Why did he stay in bed?

9. Hoa left school when she was eighteen.

=> When did Hoa leave school?

10. She spent the afternoon in the library.

=> Where did she spend the afternoon?

II. Tìm và sửa lỗi sai cho đúng: ( mỗi câu đều có lỗi sai)

1. Mai is a good friend of I.

=> Mai is a good friend of me.

2. Last week, Hoa moves to a new apartment.

=> Last week, Hoa moved to a new apartment.

3. The people in Ha Noi are very friend.

=> The people in Ha Noi are very friendly.

4. Hoa thought sew was a useful hobby.

=> Hoa thought sewing was a useful hobby.

5. The children can't didn't a lot of things.

=> The children can't do a lot of things.

6. My mother bought the material and did the dress for me.

=> My mother bought the material and made the dress for me.

7. Lan is learning how to using a sewing machine.

=> Lan is learning how to use a sewing machine.

8. What did you bought in Nha Trang last week?

=> What did you buy in Nha Trang last week?

III. Đặt câu hỏi cho từ in đậm:

1. Nam is doing his homework.

=> What is Nam doing?

2. My father traveled to Tokyo by plane.

=> How did your father trave to Tokyo?

3. Hoa and Mai will come here tomorrow evening.

=> When will Hoa and Mai come here?

4. My mother was in Da Nang last week.

=> Where was your mother last week?

5. Lan left home at 6.30 yesterday morning.

=> What time did Lan leave home yesterday morning?

6. Hoa bought a cap in the souvenir shop.

=>What did Hoa buy in the souvenir shop?

7. Mr. Pike taught me English last year.

=>Who did teach you English last year?

8. My new skirt is black.

=>What color is your new skirt?

9. Mai stayed in Hue for five days.

=>How long did Mai stayed in Hue?

10. Hoa went to Ha Noi on vacation last week.

=>Where did Hoa go to on vacation last week?

16 tháng 1 2018

I. Đặt câu hỏi cho câu trả lời theo từ đã cho:

1. Last week, I stayed at home because I was sick.

=> Why DID YOU STAY AT HOME LAST WEEK ?

2. Nam talked about his school.

=> What DID NAM TALK ABOUT ?

3. Mai went to the museum yesterday afternoon.

=> When DID MAI GO TO THE MUSEUM ?

4. My aunt went to bed at 12 o'clock last night.

=> What time DID YOUR AUNT GO TO BED LAST NIGHT ?

5. I went to bed early last night because I was very tired.

=> Why DID YOU GO TO BED EARLY ?

6. The TV program started at 8.00.

=> When DID THE TV PROGRAM START ?

7. My brother started school when he was five.

=> When DID YOUR BROTHER START SCHOOL ?

8. He stayed in bed because he had a headache.

=> Why DID HE STAY IN BED ?

9. Hoa left school when she was eighteen.

=> When DID HOA LEAVE SCHOOL ?

10. She spent the afternoon in the library.

=> Where DID SHE SPEND THE AFTERNOON ?

20 tháng 2 2018

Make questions for the underlined parts of the following sentences

1 The flower festival is celebrated every year

How often is the flower festival celebrated?

2 We always have turkey on thanksgiving

What do you have on thanksgiving?

3 Peter went to Da Nang last month with his parents

Who did Peter go to Da Nang with?

4.They participated in La Tomatina in 2013

When did they participate in La Tomatina?

5 These are my brother's pictures

Whose pictures are these?

6. The elephant race festival will be held in don village next year

Where will the elephant race festival be held next year?

7. The festival organisers' clothes are red, purple and yellow

What color are the festival organisers' clothes?

8. People organisers the festival to pray for better crops

What do people organiser the festival to do?

9. We decided the winners by tasting the dishes they cooked

How do they decide the winner ?

10. The festival lasts only one hour and a half

How long does the festival last?

20 tháng 2 2018

sách gì zậy bạn

I. Each sentence has a mistake. Find and correct. ( Cần gấp ) 1. The festival this year is as well as it was last year. -->.................................................. 2. My hometown is changed a lot. -->.................................................. 3. I am sure it is interesting television programme. -->.................................................. 4. His mother is as busy as a bat. -->.................................................. 5. The festival takes place...
Đọc tiếp

I. Each sentence has a mistake. Find and correct. ( Cần gấp )

1. The festival this year is as well as it was last year.

-->..................................................

2. My hometown is changed a lot.

-->..................................................

3. I am sure it is interesting television programme.

-->..................................................

4. His mother is as busy as a bat.

-->..................................................

5. The festival takes place for three or four days in the opening air.

-->..................................................

6. The paintings are made on traditional paper by beautiful colours.

-->..................................................

7. I am looking forward to see you there.

-->..................................................

8. How much plays has she written so far.

-->..................................................

9. We have asked people donating books and clothes to the children.

-->..................................................

10. You have to book at advance.

-->..................................................

11. I want to rise funds for street children.

-->..................................................

12. I want to share my pleasure to other people.

-->..................................................

13. Have you made volunteer work ?

-->..................................................

14. I think I can do a difference in my community.

-->..................................................

3
15 tháng 9 2017

I. Each sentence has a mistake. Find and correct. ( Cần gấp )

1. The festival this year is as well as it was last year.

-->............................WELL->GOOD......................

2. My hometown is changed a lot.

-->.........................IS->HAS.........................

3. I am sure it is interesting television programme.

-->.........................INTERESTING->AN INTERESTING.........................

4. His mother is as busy as a bat.

-->......................BAT->BEE............................

5. The festival takes place for three or four days in the opening air.

-->.......................OPENING->OPEN...........................

6. The paintings are made on traditional paper by beautiful colours.

-->...............................BY->WITH...................

7. I am looking forward to see you there.

-->.....................TO SEE->SEEING.............................

8. How much plays has she written so far.

-->.........................MUCH->MANY.........................

9. We have asked people donating books and clothes to the children.

-->..................................................

10. You have to book at advance.

-->.........................AT->IN.........................

11. I want to rise funds for street children.

-->.........................RISE->RAISE.........................

12. I want to share my pleasure to other people.

-->.............................TO->WITH.....................

13. Have you made volunteer work ?

-->......................MADE->DONE............................

14. I think I can do a difference in my community.

-->.......................dO->mAKE.........

15 tháng 9 2017

I. Each sentence has a mistake. Find and correct.

1. The festival this year is as well as it was last year.

-->...........................well => good .......................

2. My hometown is changed a lot.

-->.........................is => has.........................

3. I am sure it is interesting television programme.

-->......................interesting => an interesting............................

4. His mother is as busy as a bat.

-->........................bat => bee..........................

5. The festival takes place for three or four days in the opening air.

-->..........................opening => open........................

6. The paintings are made on traditional paper by beautiful colours.

-->.........................by => with.........................

7. I am looking forward to see you there.

-->.........................see => seeing.........................

8. How much plays has she written so far.

-->..........................much => many........................

9. We have asked people donating books and clothes to the children.

-->..........................donating => to donate........................

10. You have to book at advance.

-->..........................at => in........................

11. I want to rise funds for street children.

-->.........................rise => raise.........................

12. I want to share my pleasure to other people.

-->......................... (pleasure) to => with.........................

13. Have you made volunteer work ?

-->..........................made => done........................

14. I think I can do a difference in my community.

-->........................do => make..........................

86. the bell / into / the students / ten / and / go / past / rings / all / the yard / half / at. == >.................................................................................................................................................................... 87. take / courses / help / you / with / can / the / of / university / a / home / video cassette recorder / at. ==...
Đọc tiếp

86. the bell / into / the students / ten / and / go / past / rings / all / the yard / half / at.

== >....................................................................................................................................................................

87. take / courses / help / you / with / can / the / of / university / a / home / video cassette recorder / at.

== >....................................................................................................................................................................

88. does / mail / how / local / in / much / cost / it / a / letter / to / Vietnam?

== >.....................................................................................................................................................................

89. a/ brown/She/ of/ on/ him/ gave/ birthday/ pair/ his/ last/ shoes.

== >......................................................................................................................................................................

90. any/in/ They/ friendly/ always/at / talk/ other/ a/ with/ people/ way/time/.

== >......................................................................................................................................................................

2a. Đặt câu hỏi cho phần được gạch chân.

91. She was a little scared when she went to see the dentist.

== >.....................................................................................................................................................................

92. Uncle Tom went to HCM City two years ago.

== >......................................................................................................................................................................

93. It’s five kilometers from our house to the mountain.

== >.....................................................................................................................................................................

94. Mark didn’t want to go to my house because he had too much homework.

== >.....................................................................................................................................................................

95. Minh usually borrows his brother’s motorbike.

== >......................................................................................................................................................................

2
8 tháng 7 2017

86. the bell / into / the students / ten / and / go / past / rings / all / the yard / half / at.
== >At half past ten, the bell rings and the students go into the yard.

87. take / courses / help / you / with / can / the / of / university / a / home / video cassette recorder / at.
== >You can take university courses at home with the help of a video cassette recorder.

88. does / mail / how / local / in / much / cost / it / a / letter / to / Vietnam?
== > How much does it cost to mail a local letter in Vietnam?

89. a/ brown/She/ of/ on/ him/ gave/ birthday/ pair/ his/ last/ shoes.
== > She gave him a pairs of brown shoes on his last birthday

90. any/in/at / other/ a/ with/ people/ way/time/.
== >They always talk with other people in friendly way at any time

8 tháng 7 2017

>> Nãy làm thiếu , bh bổ sung nak <<

91.She was a little scared when she went to see the dentist.
==>What did she feel when she went to see the dentist?

92. Uncle Tom went to HCM City two years ago.
==>When did uncle Tom go to HCM City?

93.It’s five kilometers from our house to the mountain.
==>How far is it from our house to the mountain?

94. Mark didn’t want to go to my house because he had too much homework.
==> Why didn't Mark want to go to my house?

95.Minh usually borrows his brother’s motorbike.
==>Whose bicycle does Minh usually borrow?

1, I don't watch TV as often as my brother does. =>My brother................................................. 2, It was such an interesting film that we watched it several time. =>The film.................................................... 3, Students must be least 16 years old. =>Students.................................................... 4, Every tenth student goes free. =>There is no charge................................... 5, Food and transport are included in the price. =>The...
Đọc tiếp

1, I don't watch TV as often as my brother does.

=>My brother.................................................

2, It was such an interesting film that we watched it several time.

=>The film....................................................

3, Students must be least 16 years old.

=>Students....................................................

4, Every tenth student goes free.

=>There is no charge...................................

5, Food and transport are included in the price.

=>The price..................................................

6, There is no planty of choose from the menu.

=>There is planty of.....................................

7, It's dangerous to walk home late in the evening.

=>Walking......................................................

8, This is the best computer i have liver used.

=>I have never................................................

9, Keeping the environment clean is very important.

=>It's................................................................

10, They will show the time machine to the public when they finish it.

=>The time machine........................................

11, He was delighte to receive his aunt's letter.

=>He was..........................................................

12, Old car tries are recycled to make shoes and sandals.

=>People...........................................................

13, I'm very sad that i wasn't accepted in that group.

=>I'm very sad not...............................................

2
23 tháng 6 2017

1, I don't watch TV as often as my brother does.

=>My brother watches TV more often than i do

2, It was such an interesting film that we watched it several time.

=>The film was so interesting that we watched it several time.

3, Students must be least 16 years old.

=>Students have to be at least 16 years old.

4, Every tenth student goes free.

=>There is no charge for every tenth student

5, Food and transport are included in the price.

=>The price inludes Food and transport

6, There is no planty to choose from the menu.

=>There is not plenty of choice on the menu

7, It's dangerous to walk home late in the evening.

=>Walking home late in the evening is dangerous

8, This is the best computer i have ever used.

=>I have never used a better computer than this one before

9, Keeping the environment clean is very important.

=>It's very important to keep the environment clean

10, They will show the time machine to the public when they finish it.

=>The time machine will be shown to the public when it is finished

11, He was delighte to receive his aunt's letter.

=>He was delighted that his aunt sent him a letter

12, Old car tries are recycled to make shoes and sandals.

=>People use old car ties to make shoes and sandals.

13, I'm very sad that i wasn't accepted in that group.

=>I'm very sad not to be accepted in that group.

23 tháng 6 2017

1, I don't watch TV as often as my brother does.

=>My brother............................watch TV more often than I do.....................

2, It was such an interesting film that we watched it several time.

=>The film...........................was so interesting that we watched it several times.........................

3, Students must be least 16 years old.

=>Students.............................must be 16 years old at least.......................

4, Every tenth student goes free.

=>There is no charge....................for every tenth student...............

5, Food and transport are included in the price.

=>The price.........................includes food and transport.........................

6, There is planty of choose from the menu.

=>There is planty of...................choice on the menu..................

7, It's dangerous to walk home late in the evening.

=>Walking.............................home late in the evening is dangerous.........................

8, This is the best computer i have liver used.

=>I have never..........................used such a good computer......................

9, Keeping the environment clean is very important.

=>It's...................................important to keep the environment clean.............................

10, They will show the time machine to the public when they finish it.

=>The time machine......................will be shown to the public when they finish it..................

11, He was delighte to receive his aunt's letter.

=>He was............................delighted that his aunt sent him a letter..............................

12, Old car tries are recycled to make shoes and sandals.

=>People.............................recycle old car tires to make shoes and sandals ..............................

13, I'm very sad that i wasn't accepted in that group.

=>I'm very sad not.........................to be accepted in that group......................