1. If I were/ was you, I would recycle these plastic carrier bags...
2. Emma came first as a result of her hard work...
3. Eating too much sugar can lead to health problems...
4. The pilots suddenly went on strike, so all flights had to be cancelled...
5. Because I can't swim, I'm not going/ I won't go scuba diving with Terry...

1. If I were you, I would recycle these plastic carrier bags

5. I don't go scuba diving with Terry because I can't swim.

@Thạch Nguyễn

2. Emma came first as a result of her hard work.

3. Eating too much sugar can lead to health problems.
4. The pilots suddenly went on strike, so all flights had to be cancelled.

I. Finish the second sentence in such a way that means the same as the original one

1. Hoa painted the picture green

-> the picture ......green was painted by Hoa.......

2. I'm not you, but I think you should recycle these plastic bags.

--> If .........I were you, I would recycle these plastic bags........

3. Leaves are damaged. The tree cannot get enough food energy to stay healthy

--> Because .......leaves are damaged, the tree cannot get enough food energy to stay healthy........

4. Mr Smith will take the message

--> The message .......will be taken by Mr. Smith.........

I. there is a mistake in each of these sentences . underline the mistake and the correct it

1. It is lovely to seeing => see you again

2. People cut the bottles in => into small pieces

3. People mix the small pieces in => with certain chemicals

4. Cloth bags used => are used instead of plastic bags

5. Students are advised to collect plastic bottles to => for recycling

6. Glass should => be collected and sent to factories

I. there is a mistake in each of these sentences . underline the mistake and the correct it

1. It is lovely to seeing you again
=> see

2. People cut the bottles in small pieces
=> into

3. People mix the small pieces in certain chemicals
=> with

4. Cloth bags used instead of plastic bags
=> is used

5. Students are advised to collect plastic bottles to recycling
=> for

6. Glass should collected and sent to factories
=> should be

7. Be able to live in a clean environment is lucky
=> To be

8. Should do you water the compost ?
=> Do

9. Weeds is covered the river bank
=> covered by

10. We can use the garbage making fertilizer
=> to make

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

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

After I had come, they had finished their HW

She has learned English for 10 years

Tree's leaves are damaged because of the dangerous acid rain

Eating too much sugar can lead to health problems

Choose the best answer for each of the following sentences.
1. 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.

2. 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.

3. 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.

4. ______ there are some more ideas, we can end the meeting now.
A. If
B. As if
C. Unless
D. In case

5. 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

6. If they had searched more carefully, they _____ the watch sooner.
A. will find
B. would find
C. found
D. would have found

7. If I had got up early, I _______ to have breakfast now.
A. have
B. had
C. would have
D. would have had

8. I cannot buy a new computer ____ I save enough money.
A. if
B. even if
C. unless
D. as if

9. 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

10. If you do so, it _____ the matter worse.
A. makes only
B. would only make
C. will only make
D. had only made

11. You ______ English fluently unless you practice it every day.
A. will speak
B. will not speak
C. can speak
D. did not speak

12. Hurry up ______ you will miss the bus and be late for school.
A. if
B. and
C. or
D. as

13. You will get a good seat if you ______ first.
A. come
B. came
C. have come
D. will come

14. 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