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1 tháng 2 2018

Complete the sentences using your own ideas

1.If I were an environmentalist, I would create a project with title: How to make the Earth greener?

2.If our school had a big garden, I would water the trees every day.

3.If the lake wasn't polluted, the aquatic animal wouldn’t die

4.If we have a day of tomorrow, I will stay at home.

5.If you want to do something for the planet, you should come up with some ideas to protect our world

31 tháng 1 2018

1. If I were an environmentalist, I would save the world.

(Nếu tôi là một nhà môi trường học, tôi sẽ cứu thế giới này.)

2. If our school had a big garden, I would plant a lot of flowers.

(Nếu trường tôi có một khu vườn lớn, tôi sẽ trồng thật nhiều hoa.)

3. If the lake wasn’t polluted, there would be many fish alive.

(Nếu hồ không bị ồ nhiễm, sẽ có nhiều cá còn sống.)

4. If we have a day off tomorrow, we will go the the park.

(Nếu chúng tôi có một ngày nghỉ vào ngày mai, chúng tôi sẽ đi đến công viên.)

5. If you want to do something for the planet, you should stop littering first.

(Nếu bạn muốn làm gì đó cho hành tinh này, bạn nên ngừng xả rác trước đã.)

21 tháng 1 2019

Tham khảo nè: Câu hỏi của TF - BOYS - Tiếng anh lớp 9 | Học trực tuyến

1. If we (recycle) _____ more, we will help the Earth. 2. Factories (not dump) _____ waste into rivers if the government fines them heavily. 3. Students will be more aware of protecting environment if teachers _____ (teach) environmental issues at school. 4. If light pollution ______ (happen), animals will change their behaviour patterns. 5. If people (travel) _____ to work by bus, there will be fewer car fumes. 6. We _____ (save) thousands of trees if we don’t waste paper. 7. If we use...
Đọc tiếp

1. If we (recycle) _____ more, we will help the Earth.

2. Factories (not dump) _____ waste into rivers if the government fines them heavily.

3. Students will be more aware of protecting environment if teachers _____ (teach) environmental issues at school.

4. If light pollution ______ (happen), animals will change their behaviour patterns.

5. If people (travel) _____ to work by bus, there will be fewer car fumes.

6. We _____ (save) thousands of trees if we don’t waste paper.

7. If we use water carefully, more people _____ (have) fresh water.

8. The level of radioactive pollution will decrease if we _____ (switch) from nuclear power to renewable energy sources.

9. If the water temperature (increase) _____, some aquatic creatures will be unable to reproduce.

10. People will get more diseases if the water (be) _____ contaminated.

11. If you (be) _____ the president, what would you do to help the environment?

12. They get sick so often. If they (exercise) _____ more, they (be) _____ healtheir.

13. If I had one million US dollars, I (build) _____ more parks in our city.

14. Ngoc’s mother is unhappy. If Ngoc (tidy) _____ her room everyday, her mother (not be) _____ so upset.

15. There isn’t a garden at our house. If there (be) _____, we (grow) _____ vegetables.

16. It (not be) _____ possible to save the Earth if we don’t take action now.

17. If the world temperatures continue to rise, there (be) _____ less snow.

18. If I (be) _____ you, I would wear earplugs when going to the concert.

19. If we do nothing to stop global warming, we (see) _____ big changes in the future.

20. How _____ you _____ (travel) to work if you didn’t have this motorbike?

21. Our garden is so beautiful. There (not be) _____ any flowers if my sister (not take care) _____ it every day.

22. If pigs (have) _____ wings, _____ (they/be able) to fly?

23. If I _____ (be) an astronaut, I _____ (travel) to other planets.

24. If you _____ (not see) Tom ever again, how _____ (you/feel)?

25. What _____ (you/do) if you _____ (see) a ghost?

26. If you _____ (eat) more of this cake, you _____ (be) sick. You’ve already had five slices!

27. Who _____ (you/vote) for if you _____ (be) eighteen?

28. If you _____ (be) late, we _____ (not wait). We’ll have to go without you!

29. If the ozone layer is not protected, we _____ (suffer) from excessive ultraviolet radioation.

30. If you _____ (leave) the lights that you are not using on, you’ll cause over-illumination, a form of light pollution.

31. Soil pollution _____ a serious problem to solve if levels of pollutants in soil go beyond what should be naturally allowed.(be)

32. If your farming land _____ near a landfill or an industrial area, it is essential that you test the soil for pollutants before growing anything adible. (be)

33. You will be less likely to suffer lung cancer if you _____. (not smoke)

34. If it is sunny, we _____ a clean-up of the garden. (do)

35. If local residents _____ cutting trees for wood at this rate, the forest will soon be gone. (keep)

36. If we take good care of the garden, we _____ flowers all year round. (have)

37. If man _____ dumping waste into the sea, they will soon be victims. (keep)

38. We’ll go without Linh if she _____. (not come)

39. If everyone _____ a small contribution, we’ll be able to do a good cause. (make)

1
21 tháng 2 2020

bạn tham khảo nhé https://hoc24.vn/hoi-dap/question/777127.html

II. Put the verbs in brackets into the correct form. (conditional sentences type 1, 2) 1. If we (recycle) _____ more, we will help the Earth. 2. Factories (not dump) _____ waste into rivers if the government fines them heavily. 3. Students will be more aware of protecting environment if teachers _____ (teach) environmental issues at school. 4. If light pollution ______ (happen), animals will change their behaviour patterns. 5. If people (travel) _____ to work by bus, there will be fewer...
Đọc tiếp

II. Put the verbs in brackets into the correct form. (conditional sentences type 1, 2)

1. If we (recycle) _____ more, we will help the Earth.

2. Factories (not dump) _____ waste into rivers if the government fines them heavily.

3. Students will be more aware of protecting environment if teachers _____ (teach) environmental issues at school.

4. If light pollution ______ (happen), animals will change their behaviour patterns.

5. If people (travel) _____ to work by bus, there will be fewer car fumes.

6. We _____ (save) thousands of trees if we don’t waste paper.

7. If we use water carefully, more people _____ (have) fresh water.

8. The level of radioactive pollution will decrease if we _____ (switch) from nuclear power to renewable energy sources.

9. If the water temperature (increase) _____, some aquatic creatures will be unable to reproduce.

10. People will get more diseases if the water (be) _____ contaminated.

11. If you (be) _____ the president, what would you do to help the environment?

12. They get sick so often. If they (exercise) _____ more, they (be) _____ healtheir.

13. If I had one million US dollars, I (build) _____ more parks in our city.

14. Ngoc’s mother is unhappy. If Ngoc (tidy) _____ her room everyday, her mother (not be) _____ so upset.

15. There isn’t a garden at our house. If there (be) _____, we (grow) _____ vegetables.

16. It (not be) _____ possible to save the Earth if we don’t take action now.

17. If the world temperatures continue to rise, there (be) _____ less snow.

18. If I (be) _____ you, I would wear earplugs when going to the concert.

19. If we do nothing to stop global warming, we (see) _____ big changes in the future.

20. How _____ you _____ (travel) to work if you didn’t have this motorbike?

21. Our garden is so beautiful. There (not be) _____ any flowers if my sister (not take care) _____ it every day.

22. If pigs (have) _____ wings, _____ (they/be able) to fly?

23. If I _____ (be) an astronaut, I _____ (travel) to other planets.

24. If you _____ (not see) Tom ever again, how _____ (you/feel)?

25. What _____ (you/do) if you _____ (see) a ghost?

26. If you _____ (eat) more of this cake, you _____ (be) sick. You’ve already had five slices!

27. Who _____ (you/vote) for if you _____ (be) eighteen?

28. If you _____ (be) late, we _____ (not wait). We’ll have to go without you!

29. If the ozone layer is not protected, we _____ (suffer) from excessive ultraviolet radioation.

30. If you _____ (leave) the lights that you are not using on, you’ll cause over-illumination, a form of light pollution.

31. Soil pollution _____ a serious problem to solve if levels of pollutants in soil go beyond what should be naturally allowed.(be)

32. If your farming land _____ near a landfill or an industrial area, it is essential that you test the soil for pollutants before growing anything adible. (be)

33. You will be less likely to suffer lung cancer if you _____. (not smoke)

34. If it is sunny, we _____ a clean-up of the garden. (do)

35. If local residents _____ cutting trees for wood at this rate, the forest will soon be gone. (keep)

36. If we take good care of the garden, we _____ flowers all year round. (have)

37. If man _____ dumping waste into the sea, they will soon be victims. (keep)

38. We’ll go without Linh if she _____. (not come)

39. If everyone _____ a small contribution, we’ll be able to do a good cause. (make)

1
19 tháng 2 2019

II. Put the verbs in brackets into the correct form. (conditional sentences type 1, 2)

1. If we (recycle) __recycle___ more, we will help the Earth.

2. Factories (not dump) _won't dump____ waste into rivers if the government fines them heavily.

3. Students will be more aware of protecting environment if teachers __teach___ (teach) environmental issues at school.

4. If light pollution ___happens___ (happen), animals will change their behaviour patterns.

5. If people (travel) ___travel__ to work by bus, there will be fewer car fumes.

6. We ___will save__ (save) thousands of trees if we don’t waste paper.

7. If we use water carefully, more people _will have____ (have) fresh water.

8. The level of radioactive pollution will decrease if we __switch___ (switch) from nuclear power to renewable energy sources.

9. If the water temperature (increase) __increases___, some aquatic creatures will be unable to reproduce.

10. People will get more diseases if the water (be) ___is__ contaminated.

11. If you (be) __were___ the president, what would you do to help the environment?

12. They get sick so often. If they (exercise) __exercised___ more, they (be) ___would be__ healtheir.

13. If I had one million US dollars, I (build) __would build___ more parks in our city.

14. Ngoc’s mother is unhappy. If Ngoc (tidy) __tidied___ her room everyday, her mother (not be) ___would not be__ so upset.

15. There isn’t a garden at our house. If there (be) __were___, we (grow) __would grow___ vegetables.

16. It (not be) ___won't be__ possible to save the Earth if we don’t take action now.

17. If the world temperatures continue to rise, there (be) __will be___ less snow.

18. If I (be) __were___ you, I would wear earplugs when going to the concert.

19. If we do nothing to stop global warming, we (see) __will see___ big changes in the future.

20. How __would___ you ___travel__ (travel) to work if you didn’t have this motorbike?

21. Our garden is so beautiful. There (not be) __wouldn't be___ any flowers if my sister (not take care) ___didn't take care__ it every day.

22. If pigs (have) __had___ wings, __would they be able___ (they/be able) to fly?

23. If I ___were__ (be) an astronaut, I ____would travel_ (travel) to other planets.

24. If you __didn't see___ (not see) Tom ever again, how ___would you feel__ (you/feel)?

25. What __would you do___ (you/do) if you __saw___ (see) a ghost?

26. If you __eat___ (eat) more of this cake, you __will be___ (be) sick. You’ve already had five slices!

27. Who __would you write___ (you/vote) for if you __were be___ (be) eighteen?

28. If you __were be___ (be) late, we ____didn't wait_ (not wait). We’ll have to go without you!

29. If the ozone layer is not protected, we ___will suffer__ (suffer) from excessive ultraviolet radioation.

30. If you ___leave__ (leave) the lights that you are not using on, you’ll cause over-illumination, a form of light pollution.

31. Soil pollution __will be___ a serious problem to solve if levels of pollutants in soil go beyond what should be naturally allowed.(be)

32. If your farming land __is___ near a landfill or an industrial area, it is essential that you test the soil for pollutants before growing anything adible. (be)

33. You will be less likely to suffer lung cancer if you ___don't smoke__. (not smoke)

34. If it is sunny, we _will do____ a clean-up of the garden. (do)

35. If local residents ___keep__ cutting trees for wood at this rate, the forest will soon be gone. (keep)

36. If we take good care of the garden, we _will have____ flowers all year round. (have)

37. If man __keep___ dumping waste into the sea, they will soon be victims. (keep)

38. We’ll go without Linh if she __doesn't come___. (not come)

39. If everyone __makes___ a small contribution, we’ll be able to do a good cause. (make)

#Yumi

Put the verbs in brackets: Conditional sentence type I or type II (I) 1.If you come with me, I (do) ........................the shopping with you. 2Jimmy (help)..................... his mother in the garden if she reads him a story this evening 3.If it (ran) ......................., i will stay at home. 4.Our teacher will be happy if we (learn) ...................... the poem by heart. 5.If they had enough money, they (buy) ...................... a new car. 6.We (pass)...
Đọc tiếp

Put the verbs in brackets: Conditional sentence type I or type II

(I)

1.If you come with me, I (do) ........................the shopping with you.

2Jimmy (help)..................... his mother in the garden if she reads him a story this evening

3.If it (ran) ......................., i will stay at home.

4.Our teacher will be happy if we (learn) ...................... the poem by heart.

5.If they had enough money, they (buy) ...................... a new car.

6.We (pass) ....................... the exam if we studied harder.

7.If Pat (repair)............................... his bike, he could go on a bicycle tour with us.

8.She would get 100 pounds if she (sell) .................................this old shelf.

9.If were you, I (invite) ................................... Jack to the party.

(II)

1.If Tracy had a mobile phone, she (phone) ..........................all her friends.

2.I will be very angry with Nick if he (forget) ........................... my CD again.

3.If the boys win this match, their coach (invite) ............................them to be a barbecue.

4.If you (not/read) .............................. these articles, you will not know the facts about Africa.

5.You (get) .................................very wet if you walked in this rain

6.The engine (not/start) ..........................if Ben connected these two cables.

7.If he (have) ............................. time , he will buy her some sweets.

8.Maria would play in the school orchestra if she (practice).......................... the trumpet more often.

9.We (not/fetch) .............................. something to drink if Jim does not bring some sandwiches.

10.If he (carry).......................... the ruckack, iwould pull the suitcase.

0
II. Complete the sentences with the correct verb form in the bracket. 1. If someone offered to buy you one of those rings, which you (choose) ? 2. The flight may be cancelled if the fog (get) thick. 3. If the milkman (come) , tell him to leave two pints. 4. I (call) the office if I were you. 5. Someone (sit) on your glasses if you leave them there. 6. You would hear my...
Đọc tiếp

II. Complete the sentences with the correct verb form in the bracket.

1. If someone offered to buy you one of those rings, which you (choose) ?

2. The flight may be cancelled if the fog (get) thick.

3. If the milkman (come) , tell him to leave two pints.

4. I (call) the office if I were you.

5. Someone (sit) on your glasses if you leave them there.

6. You would hear my explanation if you (not talk) so much.

7. What you (do) if you hear the burglar alarm?

8. If you (read) the instructions carefully, you wouldn’t have answered the wrong question.

9. If Mel (ask) her teacher, he’d have answered her questions.

10. I would repair the roof myself if I (have) a long ladder.

11. Unless they turn that radio off, I (go) mad.

12. If you were made redundant, what you (do) ?

13. We’ll have a long way to walk if we (run) out of petrol here.

14. If you shake that bottle of port, it (not be) fit to drink.

15. If you spoke louder, your classmates (understand) you.

16. I’ll probably get lost unless he (come) with me.

17. You (not have) so many accidents if you drove more slowly.

18. If you (wear) a false beard, nobody would have recognized you.

19. If she (leave) the fish here, the cat will eat it

20. You (have) no trouble at school if you had done your homework.

2
14 tháng 10 2020

1.choosen

2.get

3.comes

4.call

5.sitting

6.dont talk

7.does

8.reads

9.ask

10.having

14 tháng 10 2020

11.going

12.doing

13.running

14.dont be

15.understand

16.comes

17.dont have

18.wearing

19.leaving

20.having

BÀI 1: Using present Participle (Ving) or Past Participle (V3/ed). 1. The boy is sitting by tree. I don't know him. BÀI 2: Finish each of the following sentences in such a way that it means exactly the same as the sentences printed before it. 1. How much is that T-shirt? -> How................ 2. It is prohibited to take pets into the museum . -> You........... 3. These sandals are too small. They don not fit me. -> If................ BÀI 3 A. What would you do if you were...
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BÀI 1: Using present Participle (Ving) or Past Participle (V3/ed).

1. The boy is sitting by tree. I don't know him.

BÀI 2: Finish each of the following sentences in such a way that it means exactly the same as the sentences printed before it.

1. How much is that T-shirt?

-> How................

2. It is prohibited to take pets into the museum .

-> You...........

3. These sandals are too small. They don not fit me.

-> If................

BÀI 3

A. What would you do if you were the principal of your school? Please write two things.

1..........

2........

B. Fill inly ONE word in each blank to complete an invitation

Dear Linh,

It is my birthday next sunday and I am going to (1)................ some mates around . Would you like to (2)..................? If the (3)................. is fine, we (4)................. have the party (5).................the front garden. There is a lot of food, so just bring your favorite CDs.

Hope you can make it.

Peter.

BÀI 4. Complete the sentences with the phrasal verbs below

bend down hold out lie down lift up put up turn around

1. I need to............... on the bed for a while . I am not felling well

2. You need to ............. your hand if you want to answer the question

3. Please........ so that I can see your face

4. You need to..............when you get into the car so that you do not hit your head

5. He did not ........... his foot when he came into the room so he tripped on the step and fell down.

BÀI 5. Use the correct from of the verbs in the brackets

1. Are you late? I ............ (drive) you to the bus top if you want.

2. You've been in the sun for hours. You............ (have) terrible sunburn

3. I get a stomach ache if I .......... (eat) too much chocolate

4. If the weather .......... (be) cool, the bananas woudn't spoil

5. We will have to go without John is he...m...... (not arrive) soon.

BÀI 6. Rewrite the sentences keeping the meaning the same . Use the word in btackets

1. I am so busy, so I don not write to mu friends regulary.

(If) ............................

2. I can not play on the basketball team and I am disappointed

( I wish).................

3. It is necessary to recycle glass and paper

(You)..............

4. It is possible that she will go to the university

(She)................

Giup mik voi a. Thanks

1
21 tháng 8 2020

BÀI 1: Using present Participle (Ving) or Past Participle (V3/ed).

1. The boy is sitting by tree. I don't know him.

-> I don't know the boy sitting by tree.

BÀI 2: Finish each of the following sentences in such a way that it means exactly the same as the sentences printed before it.

1. How much is that T-shirt?

-> How much does that T-shirt cost?

2. It is prohibited to take pets into the museum .

-> You mustn't take pets into the museum.

3. These sandals are too small. They don not fit me.

-> If these sandals weren't too small, they would fit me.

BÀI 3

A. What would you do if you were the principal of your school? Please write two things.

(Cái này bạn viết theo ý của bạn, mình có mấy ý tham khảo nhé)

1. If I were the principal of my school, I'd upgrade the facilities so that students can study more effectively.

2. I'd create a friendly study environment between teachers and students if I were the principal of my school.

B. Fill inly ONE word in each blank to complete an invitation

Dear Linh,

It is my birthday next sunday and I am going to (1) invite some mates around . Would you like to (2) join? If the (3) weather is fine, we (4) will have the party (5) in the front garden. There is a lot of food, so just bring your favorite CDs.

Hope you can make it.

Peter.

BÀI 4. Complete the sentences with the phrasal verbs below

bend down hold out lie down lift up put up turn around

1. I need to lie down on the bed for a while . I am not felling well

2. You need to put up your hand if you want to answer the question

3. Please hold out so that I can see your face

4. You need to bend down when you get into the car so that you do not hit your head

5. He did not lift up his foot when he came into the room so he tripped on the step and fell down.

BÀI 5. Use the correct from of the verbs in the brackets

1. Are you late? I will drive (drive) you to the bus top if you want.

2. You've been in the sun for hours. You have (have) terrible sunburn

3. I get a stomach ache if I eat (eat) too much chocolate

4. If the weather were (be) cool, the bananas woudn't spoil

5. We will have to go without John as he doesn't arrive (not arrive) soon.

BÀI 6. Rewrite the sentences keeping the meaning the same . Use the word in brackets

1. I am so busy, so I don not write to mu friends regulary.

(If) If I weren't so busy, I would write to my friends regularly.

2. I can not play on the basketball team and I am disappointed

( I wish) I wish I could play on the basketball team.

3. It is necessary to recycle glass and paper

(You) You need to recycle glass and paper.

4. It is possible that she will go to the university

(She) She may go to the university.

Question 1: Choose one word that is pronounced differently from others in each group 1. a.few b.new c.threw d.knew 2. a.nicest b.largest c.hottest d.best 3. a.can b.cell c.call d.cold 4. a.played b.cooked c.examined d.called 5. a.eggs b.floors c.books d.pens Question 2: Supply the correct form of the verbs in the...
Đọc tiếp

Question 1: Choose one word that is pronounced differently from others in each group

1. a.few b.new c.threw d.knew

2. a.nicest b.largest c.hottest d.best

3. a.can b.cell c.call d.cold

4. a.played b.cooked c.examined d.called

5. a.eggs b.floors c.books d.pens

Question 2: Supply the correct form of the verbs in the brackets:

1. Mr.Brown just (finish) reading the letter when the telephone on his desk (ring)

2. Those the students who (fail) the exam are going to take another one held in August

3. Hurry up or you (be) late for class

4. Hurry up or our favourite TV programme (be) over along before we (reach) home

5. I (not have) much time for entertainment these days

6. Look! A man (run) after the bus. He wants to catch it.

7. We don’t want to (pay) low wages

8. Two robbers (put) in prison escaped yesterday

9. It’s 2 years since I (last give) presents on Christmas day

10. Nothing (do) about this problem for months

11. If it (be not) for your help, I couldn’t have passed the exam

12. I wish thay (pass) their exam next year

13. Were you to have a car what you (do) ?

1
30 tháng 12 2017

Question 1: Choose one word that is pronounced differently from others in each group

1. a.few b.new c.threw d.knew

2. a.nicest b.largest c.hottest d.best

3. a.can b.cell c.call d.cold

4. a.played b.cooked c.examined d.called

5. a.eggs b.floors c.books d.pens

Question 2: Supply the correct form of the verbs in the brackets:

1. Mr.Brown had just finished (finish) reading the letter when the telephone on his desk rang (ring)

2. Those the students who failed (fail) the exam are going to take another one held in August

3. Hurry up or you will be (be) late for class

4. Hurry up or our favourite TV programme will have been (be) over along before we reach (reach) home

5. I don't have (not have) much time for entertainment these days

6. Look! A man is running (run) after the bus. He wants to catch it.

7. We don’t want to be paid (pay) low wages

8. Two robbers put (put) in prison escaped yesterday

9. It’s 2 years since I was last given (last give) presents on Christmas day

10. Nothing has been done (do) about this problem for months

11. If it hadn't been (be not) for your help, I couldn’t have passed the exam

12. I wish they would pass (pass) their exam next year

13. Were you to have a car what you do (do) ?

Chia động từ trong ngoặc cho đúng. 1. If I ......... you, I would do differently ( be) 2. He will learn better if he ......his homework everyday. ( do) 3. If we .......the lessons carefully, we would have done the test well ( review) 4. She.............a new car if she had eough money. ( buy) 5. Please send him the letter if ou.........him(learn) 6. If I had learn harder, I ...............better( learn) 7. If we keep on littering, our environment................seruously...
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Chia động từ trong ngoặc cho đúng.

1. If I ......... you, I would do differently ( be)

2. He will learn better if he ......his homework everyday. ( do)

3. If we .......the lessons carefully, we would have done the test well ( review)

4. She.............a new car if she had eough money. ( buy)

5. Please send him the letter if ou.........him(learn)

6. If I had learn harder, I ...............better( learn)

7. If we keep on littering, our environment................seruously polluted ( be)

8. The vegetables will be poisonous and inedible if we..............much pesticide ( use)

9. If she ............milk everyday, she will become stronger ( drink)

10. If they were stay at home, they wouldn't know what happened. ( stay)

11. We would help him if he............for help ( ask)

12. If today.........Sunday, we would stay at home ( be)

13. If we plant more tress along the streets, we ..........more shade and fresh air ( have)

14. We will live happier and healthier life if we ..................our environment clean ( keep)

15. If he..................the new, he will let us know ( get)

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29 tháng 6 2018

Mến VũNguyễn Công TỉnhXuân DinhQuỳnh NhiChippy Linh..... và mấy bạn khác giúp tớ với

29 tháng 6 2018

Chia động từ trong ngoặc cho đúng.

1. If I .....were.... you, I would do differently ( be)

2. He will learn better if he ...does...his homework everyday. ( do)

3. If we ...had reviewed....the lessons carefully, we would have done the test well ( review)

4. She......would buy.....a new car if she had eough money. ( buy)

5. Please send him the letter if you.....learn...him(learn)

6. If I had learnt harder, I ......would have learnt..better( learn)

7. If we keep on littering, our environment....will be.seruously polluted ( be)

8. The vegetables will be poisonous and inedible if we.....use....much pesticide ( use)

9. If she .....drinks.....milk everyday, she will become stronger ( drink)

10. If they stayed at home, they wouldn't know what happened. ( stay)

11. We would help him if he....asked.....for help ( ask)

12. If today..were.Sunday, we would stay at home ( be)

13. If we plant more tress along the streets, we ..will have....more shade and fresh air ( have)

14. We will live happier and healthier life if we .......keep.....our environment clean ( keep)

15. If he.......gets..the new, he will let us know ( get)