1. If he learns harder, he will pass the exam

=>should he learns harder he will pass the exam
2. If he brought the raincoat, he wouldn't have been wet

=> were he to buy the raincoat he wouldn't have been wet
4. If I were you, i would choose that job

=>were i you i would choose that job
5. If we hear any further news, we will be in touch immediately

should we hear any further news we will be ịn touch immediately
7. If Nam learns harder, he will pass the exam

=> should nam learn harder he will pass the exam

1/ I (do) if I (have) time. 

- I will do it if I have time. (type 1) 

- I would do it if I had time. (type 2) 

- I would have done it if I had had time. (type 3) 

2/ If she (not try), she (not succeed). 

 - If she doesn't tried, she won't succeed____________________________________________________  - If she didn't tried, she wouldn't succeed____________________________________________________ 

 - If she hadn't tried, she wouldn't have succeeded____________________________________________________ 

 3/ If I (see) her, I (tell) her. 

 - If I see her, I will tell her____________________________________________________ 

 - If I saw her, I would tell her____________________________________________________ 

 - If I had seen her, I would have told her____________________________________________________ 

 4/ If I (be) ill, I (stay) at home. 

 - If I am ill, I will stay at home____________________________________________________ 

 -If I was ill, I would stay at home ____________________________________________________ 

 -If I had been ill, I would have stayed at home ____________________________________________________ 

 5/ What (you do) if the bus (not come). 

 -What will you do if the bus doesn't come ____________________________________________________ 

 -What would you do if the bus didn't come ____________________________________________________ 

 - What would you have done if the bus hadn't come____________________________________________________ 

 6/ I (be) sorry if she (leave).  

- I will be sorry if she leaves____________________________________________________ 

 - I would be sorry if she left____________________________________________________ 

 - I would have been sorry if she had left____________________________________________________ 

 7/ I (not stay) in this job if I (can find) another one. 

 - I won't stay in this job if I can find another one____________________________________________________ 

 - I wouldn't stay in this job if I could find another one____________________________________________________ 

 - I wouldn't have stayed in this job if I had found another one____________________________________________________ 

 8/ They (get) wet if it (rain). 

 - They will get wet if it rains____________________________________________________ 

 -  They would get wet if it rained____________________________________________________ 

 -  They would have got wet if it had rained____________________________________________________ 

 9/ It (not bite) you unless you (move) 

 - It won't bit you unless you move ____________________________________________________ 

 - It wouldn't bit you unless you moved____________________________________________________ 

 - It wouldn't have bitten you unless you had moved ____________________________________________________ 

 10/ We (go) out unless it (stop) snowing. 

 - We will go out unless it stops snowing____________________________________________________ 

 - We would go out unless it stopped snowing____________________________________________________ 

 -We would have gone out unless it had stopped snowing ____________________________________________________ 

1/ I (do) if I (have) time. 

- I will do it if I have time. (type 1) 

- I would do it if I had time. (type 2) 

- I would have done it if I had had time. (type 3) 

2/ If she (not try), she (not succeed). 

 - If she doesn't tried, she won't succeed____________________________________________________  - If she didn't tried, she wouldn't succeed____________________________________________________ 

 - If she hadn't tried, she wouldn't have succeeded____________________________________________________ 

 3/ If I (see) her, I (tell) her. 

 - If I see her, I will tell her____________________________________________________ 

 - If I saw her, I would tell her____________________________________________________ 

 - If I had seen her, I would have told her____________________________________________________ 

 4/ If I (be) ill, I (stay) at home. 

 - If I am ill, I will stay at home____________________________________________________ 

 -If I was ill, I would stay at home ____________________________________________________ 

 -If I had been ill, I would have stayed at home ____________________________________________________ 

 5/ What (you do) if the bus (not come). 

 -What will you do if the bus doesn't come ____________________________________________________ 

 -What would you do if the bus didn't come ____________________________________________________ 

 - What would you have done if the bus hadn't come____________________________________________________ 

 6/ I (be) sorry if she (leave).  

- I will be sorry if she leaves____________________________________________________ 

 - I would be sorry if she left____________________________________________________ 

 - I would have been sorry if she had left____________________________________________________ 

 7/ I (not stay) in this job if I (can find) another one. 

 - I won't stay in this job if I can find another one____________________________________________________ 

 - I wouldn't stay in this job if I could find another one____________________________________________________ 

 - I wouldn't have stayed in this job if I had found another one____________________________________________________ 

 8/ They (get) wet if it (rain). 

 - They will get wet if it rains____________________________________________________ 

 -  They would get wet if it rained____________________________________________________ 

 -  They would have got wet if it had rained____________________________________________________ 

 9/ It (not bite) you unless you (move) 

 - It won't bit you unless you move ____________________________________________________ 

 - It wouldn't bit you unless you moved____________________________________________________ 

 - It wouldn't have bitten you unless you had moved ____________________________________________________ 

 10/ We (go) out unless it (stop) snowing. 

 - We will go out unless it stops snowing____________________________________________________ 

 - We would go out unless it stopped snowing____________________________________________________ 

 -We would have gone out unless it had stopped snowing ____________________________________________________ 

rewrite these sentences

16. Provided your handwriting is lengible the examiner will accept you answeres

=> So long as the examiner accept you answeres , your handwriting is lengible

17. If she hadn't insisted on kissing everyone goodbye she would have caught the train

=> If it hadn't been for her insistence on kissing everyone goodbye ,she would have caught the train

18. It was the goalkeeper who saved the match for us

=> If it hadn't been for the goalkeeper,we couldn't have saved the match

19. It is difficult to know what one's reaction would have been in such a situation

=> If I knew what one's reaction would have been in such a situation ,it wouldn't been difficult.

20. if you hadn't been speeding, the police wouldn't have stopped you

=> You must have been speeding so the police had stopped you.

21. if you persist in defying instuctions we'll be forced to act

=> Should you persist in defying instuctions,we'll be forced to act

22. Because the evidence was withheld , the prisoner was found guilty

=> Had the evidence been not withheld,the prisoner wouldn't have found guilty.

23. If you changed your mind , you'd be welcome to join us

=> Were you changed your mind,you would have been welcome to join us.

24. he would have lent you lis violin if you'd asked him

=> Had you asked him,he would have lent you lis violin.

25. a successful interview means that you will be offered a job =>Provided a interview is successful,you will be offered a job.

26. you are allowed a free ticket if you bring a group with you => so long as ou bring a group with you , you are allowed a free ticket

27. You'd better take a vote if you can't reach the consensus

=> Should you take a vote if you can't reach the consensus

28. research into gene technology has been so successful that we are not now with som serious ethical problems

=> If research research into gene technology hadn't been so successful,we would have been now with som serious ethical problems.

29. if you had given it in on time, ypu would have got a high mark => Had you given it in on time, you would have got a high mark

30. If you wish to take advantage of the offer, kindly tick the box on your order form

=> Should you take advantage of the offer, kindly tick the box on your order form.

Có j sai sót mong bạn thông cảm nhé,lâu lâu không làm òi:((

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

Rewrite these sentences

1.Without his help we would all have died

=>.If it hadn't been for his help we would all have died..............................................

2.Provided your handwriting is legible the examiner will accept your answers.

=>So long as the examiner can read your handwritting, he will accept your answers.......................................

3.If she hadn't insisted on kissing everyone goodbye she would have caught the train

=>If it hadn't.....been for her kissing every one goodbye she would have caught the train............................

4.If was the goalkeeper who saved the match for us

=>If it hadn't......been for the goalkeeper , we could have lost the match...........................

5.It is difficult to know what one's reaction would have been in such a situation

=>If I... had been in such a situation, i wouldn't have known how my reaction would have been.
............................................

Rewrite these sentences

1.Without his help we would all have died

=>If it had not been for his help, we would all have died

2.Provided your handwriting is legible the examiner will accept your answers.

=>So long as the examiner can read your handwriting, your answers will be accepted

3.If she hadn't insisted on kissing everyone goodbye she would have caught the train

=>If it hadn't been for her insisting on kissing everyone goodbye, she would have caught the train

4.If was the goalkeeper who saved the match for us

=>If it hadn't been for the goalkeeper, we would have lost the match

5.It is difficult to know what one's reaction would have been in such a situation

=>If I had been in such a situation, i wouldn't have known how my reaction would have been

A.Rewrite these sentences,using inversion with SHOULD,WERE OR HAD

1.If the chemical were to leak,a large area of the sea would be contaminated.

Were the chemical to leak,a large area of the sea would be contaminated.

2.If Germany were to beat Romania,they would face Italy in the final.

were Germany to beat Romania,they would face Italy in the final.

3.If Mr.Morgan were still head master,he would not permit such bad behavior.

were Mr.Morgan still head master,he would not permit such bad behavior.

4.If you had given it on time,you would have got a high mark

had you given it on time,you would have got a high mark

5.If she had become a lawyer,as her parents wished, she would have a large salary

had she become a lawyer,as her parents wished, she would have a large salary

6.If anything has gone wrong with my plan,I would have held responsibility

had anything gone wrong with my plan,I would have held responsibility

7.If the Government were forced into another election,it would be the favorite to win

were the Government be forced into another election,it would be the favorite to win

8.If you should wish to make an appointment to see Dr Simons,she is available between 9.00 and 11.00

should you wish to make an appointment to see Dr Simons,she is available between 9.00 and 11.00

9.If you should have further problems with your printer, contact your dealer for advice

should you have further problems with your printer, contact your dealer for advice

10.If you should decide to accept the post,you will be expected to start work on 1st April

should you decide to accept the post,you will be expected to start work on 1st April

A.Rewrite these sentences,using inversion with SHOULD,WERE OR HAD

1.If the chemical were to leak,a large area of the sea would be contaminated.

Were the chemical to leak,a large area of the sea would be contaminated.

2.If Germany were to beat Romania,they would face Italy in the final.

were Germany to beat Romania,they would face Italy in the final.

3.If Mr.Morgan were still head master,he would not permit such bad behavior.

were Mr.Morgan still head master,he would not permit such bad behavior.

4.If you had given it on time,you would have got a high mark

had you given it on time,you would have got a high mark

5.If she had become a lawyer,as her parents wished, she would have a large salary

had she become a lawyer,as her parents wished, she would have a large salary

6.If anything has gone wrong with my plan,I would have held responsibility

had anything gone wrong with my plan,I would have held responsibility

7.If the Government were forced into another election,it would be the favorite to win

were the Government be forced into another election,it would be the favorite to win

8.If you should wish to make an appointment to see Dr Simons,she is available between 9.00 and 11.00

should you wish to make an appointment to see Dr Simons,she is available between 9.00 and 11.00

9.If you should have further problems with your printer, contact your dealer for advice

should you have further problems with your printer, contact your dealer for advice

10.If you should decide to accept the post,you will be expected to start work on 1st April

should you decide to accept the post,you will be expected to start work on 1st April

1) I shouldn't drink that wine if I...were..(be) you

2) More tourist would come to this country if it..had....(have) a better climate

3) If I were sent to prison would you..visit...(visit) me ?

4) If someone...gave....(give) you a helicopter what would you do with it ?

5) I...would buy...(buy) shares in that company if I had some money

6) If the student had spoken politely,the teacher.....wouldn't be..(would/not/be) angry

7) they would have called you if the....had had.(have) your telephone number

8) the company wouldn't have cut the stress if we...had protested..(protest)

9) If they had paid attention, they..wouldn't have learned...(learn) the lesson

10) we..would go...(go) to the movies if we had had money

11) you would have found your book if you..had looked..(look) for it

12) If she had helped me I..would have finished...(finish) my homework

13)If it ...was..(be) sunny,we would have gone to the beach

14)they ..would have seen..(see) the film if they had come earlier

15)you would have found your book if you..had looked.(look) for it

1 I shouldn't drink that wine if I...were.. (be) you

2) More tourist would come to this country if it..had....(have) a better climate

3) If I were sent to prison would you..visit...(visit) me ?

4) If someone...gave....(give) you a helicopter what would you do with it

5) I...would buy...(buy) shares in that company if I had some money

6) If the student had spoken politely,the teacher.....wouldn't have been..(would/not/be) angry

7) they would have called you if the....had had. (have) your telephone number

8) the company wouldn't have cut the stress if we...had protested..(protest)

9) If they had paid attention, they..wouldn't have learned...(learn) the lesson

10) we..would go...(go) to the movies if we had had money

11) you would have found your book if you..had looked..(look) for it

12) If she had helped me I..would have finished... (finish) my homework

13)If it ...has been..(be) sunny,we would have gone to the beach

14)they ..would have seen..(see) the film if they had come earlier

15)you would have found your book if you..have looked.(look) for it

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