K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

16 tháng 7 2018

write in correct english

1. When we visited my friends, they had=>were having dinner with their children

2. My father watered=>was watering the flowers when it was started =>started raining

3. Lan has met=>met her old friends two ays ago

4. Phong didn't see=>hasn;t seen that film bfore

5. the girls participated=>have participated in that project twice

6. People speak=>have spoken english in australia for a long time

7. Her father worked=>has worked in that hospital since he has moved to this city

8. His sister played=>has played piano since she was eight

9. They didn't see =>have not seen each other for a long

10. The girls have finished =>finishedtheir project two days ago

6 tháng 4 2022

If the air wasn't dirty, I wouldn't sneeze so much

They had managed to leave the flooded villages by 11 o'clock last night

25 tháng 2 2018

II. Rearrange the words to make meaningful sentence
1. the environment/ our awareness/ help/ of/ raise/ The actions/ protecting/.

=> The actions of protecting the environment help raise our awareness.
2. a good idea/ It isn't/ because/ to/ plastic/ burn/ it/ the air/ pollutes/.

=> It isn't a good idea to burn plastic because it pollutes the air.
3. she/ If/ blood/ work/ in/ wouldn't/ pressure/ office/,/ Sarah/ didn't/ have/ high/ noisy/ a/.

=> If Sarah didn't work in a noisy office, she wouldn't have a high blood pressure.
4. it/ would stop/ mudslide/,/ we/ If/ didn't/ anticipate/ raining/ a/.

=> If we didn't anticipate a mudslide, it would stop raining.
5. the/ every/ Highland/ join/ Games/ Scottish/ year/ traditionally/ The/.

=> The Scottish traditionally join the Highland Game every year.

25 tháng 2 2018

II. Rearrange the words to make meaningful sentence
1. the environment/ our awareness/ help/ of/ raise/ The actions/ protecting/.

=> The actions of protecting the environment help our awareness raise.
2. a good idea/ It isn't/ because/ to/ plastic/ burn/ it/ the air/ pollutes/.

=> It isn't a good idea to burn plastic because it pollutes the air
3. she/ If/ blood/ work/ in/ wouldn't/ pressure/ office/,/ Sarah/ didn't/ have/ high/ noisy/ a/.

=> If Sarah didn't work in a noisy office, she wouldn't have high blood pressure.
4. it/ would stop/ mudslide/,/ we/ If/ didn't/ anticipate/ raining/ a/.

=> If we didn't anticipate a muslide, it would stop raining.
5. the/ every/ Highland/ join/ Games/ Scottish/ year/ traditionally/ The/.

=> The Highland Games join Scottish traditionally every the year

10 tháng 6 2021

1. had left; erupted

2. arrived; had stopped

3. had spent, arrived

4. got; hadn’t taken

5. found; had bought

10 tháng 6 2021

1 had left - erupted

2 arrived - had stopped

3 had spent - arrived

4 got - hadn't taken

5 found - had bought

Exercise 6 : Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she 2.If you_____to me, you wouldn’t have got so much trouble. A. listened B. would listen C. had listened D. Would have listened 3.If you don’t know how to spell a word, you_____ look it up in the dictionary. A. must B. will C. should D. ought 4.If the sun _____, we _____for a walk. A....
Đọc tiếp
Exercise 6 : Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she 2.If you_____to me, you wouldn’t have got so much trouble. A. listened B. would listen C. had listened D. Would have listened 3.If you don’t know how to spell a word, you_____ look it up in the dictionary. A. must B. will C. should D. ought 4.If the sun _____, we _____for a walk. A. shines / will go B. shone / will go C. shone / would go D. had shone / would go 5.The campfire _____ if it _____ last night. A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains 6.But for our parents, we _____ successful in life. A. will never be B. would never be C. wouldn’t have be D. would have never been 7.If I _____ my wallet at home this morning, I _____ money for lunch now. A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had 8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do. A. were / would know B. is / will know C. had been / would have known D. was / would know 9.If we _____ the plans carefully, we would not have had so many serious mistakes. A. study B. had studied C. studied D. were studying 10.I will never talk to you again _____ you apologize me _____ your being rude. A. if / for B. unless / for C. or / of D. whether / or 11._____if you work harder, you will be sacked. A. Whether B. If C. However D. Unless 12.I think you should stop smoking. A. If I am you, I will stop smoking. B. If I were you, I will stop smoking. C. If I were you, I would stop smoking. D. If I had been you, I would stop smoking. 13.If you take the ice out of the fridge, it _____. A. vaporizes B. melts C. heats D. disappears 14.We should do something to protect water from being polluted _____we will have nothing to drink in the future. A. if B. whether C. or D. unless 15.Let’s knock on their door to see _____home. A. if they’re B. unless they’re C. whether they were D. if they were 16.Unless we _____more snow, we can’t go skiing. A. will have B. have C. have had D. had 17.You’ll fail the exam _____ you start revising. A. if B. until C. when D. unless 18.Unless you wash the car, you _____not drive it at the weekend. A. would B. could C. have to D. may 19.If Peter _____his car before the drive, he _____the problem of out of petrol. A. checked / will not get B. had checked / would not have got C. checks / will not have got D. would be checking / will not have got 20.He stepped on the mine, and it exploded. A.If he doesn’t step on the mine, it doesn’t explode. B.If he doesn’t step on the mine, it won’t explode. C.If he didn’t step on the mine, it wouldn’t explode. D.If he hadn’t stepped on the mine, it wouldn’t have exploded. 21. In my experiments, the liquid is cooled to 32ºF. It always freezes. A.If you cool the liquid to 32 degrees, it froze. B.If you cooled the liquid to 32 degrees, it would freeze. C.If you cool the liquid to 32 degrees, it will freeze. D.If you had cooled the liquid to 32 degrees, it would have frozen. 22.It may rain this afternoon. I hope it doesn’t because I don’t want the match to be cancelled. A. If it rains, the match is cancelled. B. If it rains, the match will be cancelled. C. if it rained, the match would be cancelled D. If it had rained, the match would have been cancelled. 23.Unfortunately, I don’t know Philosophy, so I can’t answer your question. A.If I know Philosophy, I can answer your question. B.If I know Philosophy, I will be able to answer your question. C.If I knew Philosophy, I would be able to answer your question. D.If I had known Philosophy, I would have been able to answer your question. 24._____ there are some more ideas, we can end the meeting now. A. If B. As if C. Unless D. In case 25.If he _____with us now, he _____ the beauty of nature of the National Park. A. is / can enjoy B. was / will enjoy C. has been / would enjoy D. were / could enjoy 26.If they had searched more carefully, they...the watch sooner. A. will find B. would find C. found D. would have found 27.If I had got up early, I _____ to have breakfast now. A. have B.I had C. would have D. would have had 28.I cannot buy a new computer _____ I save enough money. A. if B. even if C. unless D. as if 29.Most people you meet will be polite to you _____. A. if you are polite to them B. if you will be polite to them C. unless you are polite to them D. if you were polite to them 30.If you do so, it _____ the matter worse. A. makes only B. would only make C. will only make D. had only made 31.You _____ English fluently unless you practice it every day. A. will speak B. will not speak C. can speak D. did not speak 32.Hurry up _____ you will miss the bus and be late for school. A. if B. and C. or D. as 33.You will get a good seat if you _____ first. A. come B. came C. have come D. will come 34.Sam will not graduate_____. A. if he passed all the tests B. if he does not pass all the tests. C. unless he passes all the tests D. unless he had passed all the tests. 35.If I had time, I would go with you. A.I am free and surely go with you. B.I am too busy to go with you. C. I will go with you because I have time. D. I am free enough to go with you. 36.If Margaret hadn’t been wearing a seat belt, she.... Injured. A. has been B. would has been C. would be D. would have been 37.If I _____ the rain yesterday, I_____ ill. A. had not caught / would have been B. had not caught / would have not been C. have not caught / were not D. have not caught / would have been 38.He looked frightened as if he _____ a ghost. A. sees B. is seeing C. has seen D. had seen 39.What _____if there _____ a serious nuclear accident. A. will happen / was B. happens / were C. would happen / were D. would happen / had been
2
2 tháng 1 2019

Exercise 6 : Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she 2.If you_____to me, you wouldn’t have got so much trouble. A. listened B. would listen C. had listened D. Would have listened 3.If you don’t know how to spell a word, you_____ look it up in the dictionary. A. must B. will C. should D. ought 4.If the sun _____, we _____for a walk. A. shines / will go B. shone / will go C. shone / would go D. had shone / would go 5.The campfire _____ if it _____ last night. A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains 6.But for our parents, we _____ successful in life. A. will never be B. would never be C. wouldn’t have be D. would have never been 7.If I _____ my wallet at home this morning, I _____ money for lunch now. A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had 8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do. A. were / would know B. is / will know C. had been / would have known D. was / would know 9.If we _____ the plans carefully, we would not have had so many serious mistakes. A. study B. had studied C. studied D. were studying 10.I will never talk to you again _____ you apologize me _____ your being rude. A. if / for B. unless / for C. or / of D. whether / or 11._____if you work harder, you will be sacked. A. Whether B. If C. However D. Unless 12.I think you should stop smoking. A. If I am you, I will stop smoking. B. If I were you, I will stop smoking. C. If I were you, I would stop smoking. D. If I had been you, I would stop smoking. 13.If you take the ice out of the fridge, it _____. A. vaporizes B. melts C. heats D. disappears 14.We should do something to protect water from being polluted _____we will have nothing to drink in the future. A. if B. whether C. or D. unless 15.Let’s knock on their door to see _____home. A. if they’re B. unless they’re C. whether they were D. if they were 16.Unless we _____more snow, we can’t go skiing. A. will have B. have C. have had D. had 17.You’ll fail the exam _____ you start revising. A. if B. until C. when D. unless 18.Unless you wash the car, you _____not drive it at the weekend. A. would B. could C. have to D. may 19.If Peter _____his car before the drive, he _____the problem of out of petrol. A. checked / will not get B. had checked / would not have got C. checks / will not have got D. would be checking / will not have got 20.He stepped on the mine, and it exploded. A.If he doesn’t step on the mine, it doesn’t explode. B.If he doesn’t step on the mine, it won’t explode. C.If he didn’t step on the mine, it wouldn’t explode. D.If he hadn’t stepped on the mine, it wouldn’t have exploded. 21. In my experiments, the liquid is cooled to 32ºF. It always freezes. A.If you cool the liquid to 32 degrees, it froze. B.If you cooled the liquid to 32 degrees, it would freeze. C.If you cool the liquid to 32 degrees, it will freeze. D.If you had cooled the liquid to 32 degrees, it would have frozen. 22.It may rain this afternoon. I hope it doesn’t because I don’t want the match to be cancelled. A. If it rains, the match is cancelled. B. If it rains, the match will be cancelled. C. if it rained, the match would be cancelled D. If it had rained, the match would have been cancelled. 23.Unfortunately, I don’t know Philosophy, so I can’t answer your question. A.If I know Philosophy, I can answer your question. B.If I know Philosophy, I will be able to answer your question. C.If I knew Philosophy, I would be able to answer your question. D.If I had known Philosophy, I would have been able to answer your question. 24._____ there are some more ideas, we can end the meeting now. A. If B. As if C. Unless D. In case 25.If he _____with us now, he _____ the beauty of nature of the National Park. A. is / can enjoy B. was / will enjoy C. has been / would enjoy D. were / could enjoy 26.If they had searched more carefully, they...the watch sooner. A. will find B. would find C. found D. would have found 27.If I had got up early, I _____ to have breakfast now. A. have B.I had C. would have D. would have had 28.I cannot buy a new computer _____ I save enough money. A. if B. even if C. unless D. as if 29.Most people you meet will be polite to you _____. A. if you are polite to them B. if you will be polite to them C. unless you are polite to them D. if you were polite to them 30.If you do so, it _____ the matter worse. A. makes only B. would only make C. will only make D. had only made 31.You _____ English fluently unless you practice it every day. A. will speak B. will not speak C. can speak D. did not speak 32.Hurry up _____ you will miss the bus and be late for school. A. if B. and C. or D. as 33.You will get a good seat if you _____ first. A. come B. came C. have come D. will come 34.Sam will not graduate_____. A. if he passed all the tests B. if he does not pass all the tests. C. unless he passes all the tests D. unless he had passed all the tests. 35.If I had time, I would go with you. A.I am free and surely go with you. B.I am too busy to go with you. C. I will go with you because I have time. D. I am free enough to go with you. 36.If Margaret hadn’t been wearing a seat belt, she.... Injured. A. has been B. would has been C. would be D. would have been 37.If I _____ the rain yesterday, I_____ ill. A. had not caught / would have been B. had not caught / would have not been C. have not caught / were not D. have not caught / would have been 38.He looked frightened as if he _____ a ghost. A. sees B. is seeing C. has seen D. had seen 39.What _____if there _____ a serious nuclear accident. A. will happen / was B. happens / were C. would happen / were D. would happen / had been

2 tháng 1 2019

Lần sau bn vt thì cách ra cho dễ nhìn nhé~~~~

Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she

2.If you_____to me, you wouldn’t have got so much trouble.

A. listened B. would listen C. had listened D. Would have listened

3.If you don’t know how to spell a word, you_____ look it up in the dictionary.

A. must B. will C. should D. ought

4.If the sun _____, we _____for a walk.

A. shines / will go B. shone / will go C. shone / would go D. had shone / would go

5.The campfire _____ if it _____ last night.

A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains

6.But for our parents, we _____ successful in life.

A. will never be B. would never be C. wouldn’t have be D. would have never been

7.If I _____ my wallet at home this morning, I _____ money for lunch now.

A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had

8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do.

A. were / would know B. is / will know C. had been / would have known D. was / would know

9.If we _____ the plans carefully, we would not have had so many serious mistakes.

A. study B. had studied C. studied D. were studying

10.I will never talk to you again _____ you apologize me _____ your being rude.

A. if / for B. unless / for C. or / of D. whether / or

I. Change the following sentences from active voice into passive voice. 1.They had to cancel the flight because of the bad weather. 2.We must finish the project on time. 3. People can find a cure for cancer in the near future. 4.Someone might steal your bike if you leave it outside. 5. They ought to knock down the old building. 6. They held the 22 nd SEA Games in Viet Nam in 2003. 7. The teacher will explain the lesson until all the students understand it. 8. He has done his homework for hours...
Đọc tiếp

I. Change the following sentences from active voice into passive voice.
1.They had to cancel the flight because of the bad weather.
2.We must finish the project on time.
3. People can find a cure for cancer in the near future.
4.Someone might steal your bike if you leave it outside.
5. They ought to knock down the old building.
6. They held the 22 nd SEA Games in Viet Nam in 2003.
7. The teacher will explain the lesson until all the students understand it.
8. He has done his homework for hours but he hasn’t finished it yet.
9. My parents never make me work hard.
10. The brick – layers have been building a house in the village.
11. One of my neighbors has stolen my bicycle.
12. I have a hairdresser do my hair every day.
13. How often do you take the dog oout for a walk? – Every five hours.
14. My brother will give me a cat for my fifteenth birthday.
15. People rumoured that the King was afraid of his wife.
16. I am going to read her latest book.
17.They should tidy this room twice a week
18. Amazing news! Scientists have dicovered a new planet.
19. She made ten phone calls yesterday.
20.My daughter has to finish all her homework before school.
21. My sister gave me a new pair of jeans on my fifteenth birthday.
22. The workers are building a supermarket on our street.
23. The zoo keepers feed the animals twice a day.
24.They have sold their car to pay their debt.
25. We are going to grow flowers in the front garden.
26. You mustn’t use this machine after 5.30 pm
27. My grandmother is knitting a new sweater for me.

28. Did people make jeans two hundred years ago.
29.We don’t use this kind of cloth to make shirts.
30. Vietnamese women continue to wear the unique and fashionable ao dai.
31. The mechanic is repairing Judy’s car.
32. We must do something before it is too late.
33. They make these artificial flowers of sink.
34. Did they feed Lulu last night?
35. They used to drink beer for breakfast in England yeaers ago.
36. They were cleaning the floor when I arrived.
II. Change the following sentences from the passive voice into active voice.
1. The robber were arrested by the police yesterday. ->
2. The match has been cancelled due to the bad weather. ->
3. The flowers need watering. ->
4. The documents will be sent as soon as possible. ->
5. We are often shouted at at work by our boss. ->
6. Two department stores have been built in the neighborhood this year.
7. I was made to wash the clothes by my mother.
8. She has her clothes made by a famous tailor.
9. It was believed that the earth was square.
10. He was rumoured to be mysterious.
11. I was given a new pair of jeans on my fifteenth birthday by my sister.
12. A supermarket on our street is being built on our street by the workers.
13. The animals are fed twice a day by the zoo keepers.
14.Their car has been sold to pay their debt by them.
15. Flowers are going to be grown in the front garden by us.
16. This machine mustn’t be used after 5.30 pm by you.
17. Is knitting a new sweater is being knitted for me by my grandmother.
18. Were jeans made two hundred years ago?
19.This kind of cloth isn’t used to make shirts by us.
20. The unique and fashionable ao dai continue to be worn by Vietnamese women.
22. The information is kept on our computer. (We)
23. As I was walking home, I thought I was being followed. (someone)

0
Ex1:Complete the second sentence so that it has similar meaning to the first sentence 1>The soil is poisoned because,farmers use too many pesticides and herbicides. -If............................................................................................................................ 2>I can't help you unless you tell me what's wrong. -If.......................................................................................................................... 3>Many people have...
Đọc tiếp

Ex1:Complete the second sentence so that it has similar meaning to the first sentence

1>The soil is poisoned because,farmers use too many pesticides and herbicides.

-If............................................................................................................................

2>I can't help you unless you tell me what's wrong.

-If..........................................................................................................................

3>Many people have stomachache due to the contaminated food.

-The food..................................................................................................

4>Stop swimming in that lake,or you will have skin rashes.

-If...........................................................................................................

5>John lives in the area affected by air pollution,so he has breathing problem.

-Because............................................................................................................

-If.........................................................................................................................

6>We use eco-friendly products and we can protect environment.

-It we..................................................................................................................

7>I think you should volunteer to clean the beach.

-If I were.................................................................................................

8>The air is polluied,so there are breathing problems(leads).

9>Their children have birth defects because the parents were exposed to radiotion(so)

1
23 tháng 2 2020

Ex1:Complete the second sentence so that it has similar meaning to the first sentence

1>The soil is poisoned because,farmers use too many pesticides and herbicides.

-If.............................famers used too many pesticides and herbicides, the soil would be poisoned ...............................................................................................

2>I can't help you unless you tell me what's wrong.

-If....................................you don't tell me what's wrong , I can't help you ......................................................................................

3>Many people have stomachache due to the contaminated food.

-The food..............................is contaminated so many people have stomacchache ....................................................................

4>Stop swimming in that lake,or you will have skin rashes.

-If...................................you don't stop swimming on that lake, you will have skin rashes........................................................................

5>John lives in the area affected by air pollution,so he has breathing problem.

-Because....................................John lives in the area affested by air pollution, he has breathing problem........................................................................

-If.................................John didn't live in the area affected by air pollution, he wouldn't have breathing problem........................................................................................

6>We use eco-friendly products and we can protect environment.

-It we...........................................use eco-friendly products, we can protect environment.......................................................................

7>I think you should volunteer to clean the beach.

-If I were....................................you, I would volunteer to clean the beach.............................................................

8>The air is polluied,so there are breathing problems(leads).

-> The air pollution leads to breathing problems

9>Their children have birth defects because the parents were exposed to radiotion(so)

-> The parents were exposed to radiotion so their children have birth defects

24 tháng 2 2020

thak bn

Choose the best answer. 1. By the time we _____ to the cinema, the film had started. A. gets B. had got C. has got D. got 2. When the policeman came there, the robber _____ A. had left B. has left C. left D. was left 3. If you were the president, what _____ you do to help the environment? A. will B. did C. would D. do 4. The village's drinking water _____ with poisonous chemicals since the factory came into operation. A. contaminates B. is contaminated C. has contaminated D. has been...
Đọc tiếp

Choose the best answer.

1. By the time we _____ to the cinema, the film had started.

A. gets B. had got C. has got D. got

2. When the policeman came there, the robber _____

A. had left B. has left C. left D. was left

3. If you were the president, what _____ you do to help the environment?

A. will B. did C. would D. do

4. The village's drinking water _____ with poisonous chemicals since the factory came into operation.

A. contaminates B. is contaminated C. has contaminated D. has been contaminated

5. When the policeman came to the scene, the driver of the car _____

A. have left B. had left C. leaves D. was left

6. You will recognize Jenny when you see her. She _____ a red hat.

A. wears B. is wearing C. will wear D. will be wearing

7. Recent_____ developments have made robots more user-friendly and intelligent.

A. science B. scientist C. scientific D. scientifically

8. If we use water_____, more people will have cleaner water.

A. care B. carefully C. careless D. carelessly

9. Water pollution make some aquatic animals_____

A. dying B. to die C. die D. died

10. She prefers English _____ France.

A. to B. for C. at D. in

11. Three hundred people _____ homeless by the earthquake.

A. left B. were leaving C. were left D. had left

12. By the time we got to the cinema, the film_____

A. had started B. started C. starting D. has started

13. Many people die_____ food poison today.

A. at B. of C. in D. on

14. The _____ buried the whole village while people were still sleeping in their houses.

A. drought B. flood C. mudslide D. tornado

15. If people _____ to work by bus, there _____ fewer car fumes.

A. to travel / be B. travel / are C. will travel / be D. travel / will be

16. If people didn't throw rubbish in the street, it _____ attractive.

A. will look B. would look C. look D. to look

17. There are about 750 million English speakers in the world, and this number _____ fast.

A. is increasing B. to increase C. are increasing D. increase

18. In the future, natural disasters_____ accurately with the help of technology.

A. to predict B. predict C. will be predicted D. will predict

19. On my birthday, I was very pleased because I______ a nice present.

A. receive B. had received C. receives D. am receiving

20. Water _____ in the lake has made the fish die.

A. pollution B. pollute C. polluted D. polluting

21. The train or HN _____ at 7a.m tomorrow.

A. leaves B. leaving C. to leave D. left

22. Environmental pollution has_____ to lots of health problems.

A. caused B. got C. made D. led

23. The heavy rain has caused _____ in many parts of the country.

A. drought B. storms C. forest fire D. floods

24. By the time we _____ to the cinema, the film had started.

A. had got B. got C. were getting D. get

25. A person who _____ the bagpipes is called a piper.

A. plays B. performs C. entertains D. does

26. The team's success was largely_____ to her efforts.

A. because B. due C. since D. however

27. I often drink coffee, but today I _____ tea.

A. am drinking B. drink C. drank D. drinks

28. If you_____ the president, what would you do to help the environment?

A. are B. had been C. were D. was

29. Eating too much sugar can _____ to health problems.

A. cause B. lead C. make D. take

30. Emergency teams are still removing the _____ from the plane crash.

A. dirt B. debris C. dust D. air

1
11 tháng 6 2020

1. By the time we _____ to the cinema, the film had started.

A. gets B. had got C. has got D. got

2. When the policeman came there, the robber _____

A. had left B. has left C. left D. was left

3. If you were the president, what _____ you do to help the environment?

A. will B. did C. would D. do

4. The village's drinking water _____ with poisonous chemicals since the factory came into operation.

A. contaminates B. is contaminated C. has contaminated D. has been contaminated

5. When the policeman came to the scene, the driver of the car _____

A. have left B. had left C. leaves D. was left

6. You will recognize Jenny when you see her. She _____ a red hat.

A. wears B. is wearing C. will wear D. will be wearing

7. Recent_____ developments have made robots more user-friendly and intelligent.

A. science B. scientist C. scientific D. scientifically

8. If we use water_____, more people will have cleaner water.

A. care B. carefully C. careless D. carelessly

9. Water pollution make some aquatic animals_____

A. dying B. to die C. die D. died

10. She prefers English _____ France.

A. to B. for C. at D. in

11. Three hundred people _____ homeless by the earthquake.

A. left B. were leaving C. were left D. had left

12. By the time we got to the cinema, the film_____

A. had started B. started C. starting D. has started

13. Many people die_____ food poison today.

A. at B. of C. in D. on

14. The _____ buried the whole village while people were still sleeping in their houses.

A. drought B. flood C. mudslide D. tornado

15. If people _____ to work by bus, there _____ fewer car fumes.

A. to travel / be B. travel / are C. will travel / be D. travel / will be

16. If people didn't throw rubbish in the street, it _____ attractive.

A. will look B. would look C. look D. to look

17. There are about 750 million English speakers in the world, and this number _____ fast.

A. is increasing B. to increase C. are increasing D. increase

18. In the future, natural disasters_____ accurately with the help of technology.

A. to predict B. predict C. will be predicted D. will predict

19. On my birthday, I was very pleased because I______ a nice present.

A. receive B. had received C. receives D. am receiving

20. Water _____ in the lake has made the fish die.

A. pollution B. pollute C. polluted D. polluting

21. The train or HN _____ at 7a.m tomorrow.

A. leaves B. leaving C. to leave D. left

22. Environmental pollution has_____ to lots of health problems.

A. caused B. got C. made D. led

23. The heavy rain has caused _____ in many parts of the country.

A. drought B. storms C. forest fire D. floods

24. By the time we _____ to the cinema, the film had started.

A. had got B. got C. were getting D. get

25. A person who _____ the bagpipes is called a piper.

A. plays B. performs C. entertains D. does

26. The team's success was largely_____ to her efforts.

A. because B. due C. since D. however

27. I often drink coffee, but today I _____ tea.

A. am drinking B. drink C. drank D. drinks

28. If you_____ the president, what would you do to help the environment?

A. are B. had been C. were D. was

29. Eating too much sugar can _____ to health problems.

A. cause B. lead C. make D. take

30. Emergency teams are still removing the _____ from the plane crash.

A. dirt B. debris C. dust D. air