1. If you get the first prize, we _____ a celebration.

      A. have                       B. will have                 C. would have had      D. would have

2. If she _____ such mistakes again, she'll lose her job.

      A. made                      B. makes                      C. had made                 D. make

3. If he had much money, he _____ one villa.

      A.  is buy                    B. could buy               C. can buy                     D.  will buy   

4. If it _____, I will come to see you.

      A. didn't rain             B. doesn't rain            C. don't rain                  D. not rain

 5. I _____ to work if I had a car.

      A. drove                     B. will drive                C.  would drive            D. would have driven

6. If there were no gravity, everything _____.

      A. would float           B. floated                    C. would be floating   D. will float

7. Unless you go now, you _____late for school.

      A. will be                   B. would have been   C. would be                  D. are

8. You______ if you take a map.

      A. will get lost           B. would get lost        C. won't get lost           D. would have got lost

 9. We would save thousands of lives if we ______out the remedy for the flu.

      A. had not found      B. found                      C. find                           D. will find

 10. If I _____ ten years younger, I would do yoga every day.

      A. are                          B. were                        C. have been                D. am

11. If we _____ in a town, life would be better.

      A. had lived               B. lived                        C. would live                D. live

 12. We _____ you if we have time.

      A. would phone        B. had phoned            C. phoned                     D. will phone

13. It _____ be a pity if she married Fred.

      A. can                         B. would                      C. may                           D. will

14. I know I'll feel better if I _____ smoking.

      A. stopped                 B. will stop                  C. stop                           D. had stopped

15. I could understand him if he _____ more slowly.

      A. speaks                   B. spoke                      C. would speak            D. had spoken

16. The kitchen will look better if it _____ red curtains.

      A. have                       B. had had                   C. would have              D. has

17. It _____ quicker if you use a computer.

      A. would be               B. will be                     C. been                          D. were

 18. "Will you come to the party tomorrow?" - "I will if I_____ no visitors."

      A. had                         B. will have                 C. have                          D. am having

19. If they didn't live so far away, I _____ them every week.

      A. will visit                B. visited                     C. visit                           D. would visit

 20. Unless we _____ throwing garbage into the ocean, it will be polluted.

      A. won't stop             B. stop                         C. will stop                   D. don't stop

1. B

2. B

3. D

4. B

5. B

6. D

7. A

8. C

9. C

10. D

   1.        Choose the best answer

          1.1.        If I ………. a lot of money now, I ………… a new car

A.   have/ will buy                 C. had/ will buy

B.    have/ would buy             D. had/ would buy

          1.2.        If I……….. you, I …………. do that

A.   am/ will                          C. were/ will

B.    were/ would                    D. had been/ would

          1.3.        If I were offered the job, I think I…………. it

A.   take                                  C. would take      

B.    B. will take                      D. would

          1.4.        I would be very surprised if he…………

A.   refuses                           C. had refused      

B.    refused                           D. would refuse

          1.5.        Many people would be out of work if that factory…….. down

A.   closes                   C. closed    

B.    had closed             D. would close

          1.6.        If she sold her car, she ………. much money

A.   gets                                C. will get            

B.    would get                       D. would have got

          1.7.        They would be disappointed if we …………

A.   hadn’t come          C. don’t come

B.    wouldn’t come                D. didn’t come

          1.8.        Would he be angry if I ………… his bicycle without asking?

A.   take                                C. had taken

B.    took                               D. would take

          1.9.        She ………… terribly upset if I lost this ring

A.   will be                  C. were

B.    would be               D. had been

       1.10.        If someone ………. in here with a gun, I would be very frightened

A.   would walk           C. had walked

B.    walks                    D. walked

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

E5 Choose the best answer A ,B ,C or D

1.         If I ………….….a lot of money now, I …………..a new car.

  A. have /will buy        B. have / would buy      C. had/ will buy               D. had/ would buy.

2.         If I ……………you, I …………………….do that.

      A. am/ will           B. were /would               C. were / will             D. had been/ would.

3.         If I were offered the job, I think I ………………………….…. it.

      A. take                 B. will take                     C. would take           D. would have taken.

4.         I would be very surprised if he…………………….…………..

      A. refuses              B. refused                        C. had refused                D. would refuse.

5.         Many people would be out of work if that factory………..down.

      A. closes               B. had closed                                        C. closed                        D. would close.

6.          If she sold her car, she ……………………..… much money.

      A. gets                  B. would get                      C. will get                      D. would have got.

7.         They would be disappointed if we………………………………….

      A. hadn’t come                                B. wouldn’t come     C. don’t come      D. didn’t come.

8.         Would John be angry if I ……………..…. ……his bicycle without asking?

      A. take             B. took                              C. had taken                       D. would take.

9.         She ………………….….terribly upset if I lost this ring.

      A. will be              B. would be                         C. were                        D. had been.

10.    If someone…………in here with a gun, I would be very frightened.

      A. would walk         B. walks                                  C. had walked                          D. walked.

11.    What would happen if you ……………..to work tomorrow?

      A. don’t go           B. didn’t go           C. won’t go                   D. wouldn’t go.

12.    We ‘ll get wet if we ……………………………….out.

      A. go                     B. did go                       C. went                            D. had gone.

13.    If I go shopping, I …………………….…some food.

      A. buy                         B. will buy               C. would buy           D. would have bought.

14.    If I find it, I ……………………..………you.

A. will tell              B. would tell                        C. had told             D. told.

15.    What would you do if you……………a million dollars?

      A. would win        B. win     C. had won       D. won.

16.    If we took the 6: 30 train, we………………………………too early.

      A. would arrived        B. arrived                  C. will arrived                D. would arrive.

17.    You won’t pass the examination……………you study more.

      A. as long as           B. unless                                                C. if                                     D. whether.

18.    If I were in your place, I ……………………….a trip to England.

      A. will make       B. had made               C. made.                            D. would make.

19.    If I  …………………..…….. you , I’d save some of your lottery winning.

      A. be                B. were                       C. am                          D. was

20.    If I had enough money, I …………………… abroad to improve my English.

      A. will go         B. should go              C. would go                   D. should have go to

21.    If it ………………... convenient, let’s go out for a drink tonight.

      A. be                B. was                      C. were                                     D. is

22.    If you ……………..…. time, please write to me.

  A. have                B. have had                   C. had                       D. has

23.    If  you had the chance, ……………………………… you go finishing?

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

24.    Trees won’t grow ……………………... there is enough water.

      A. if                 B. when                    C. unless                       D. as

25.    If you stay up late the previous night, you ………. sleepy the next morning.

      A. feel              B. to feel       C. feels            D. will feel

26.    If Peter …………………, Sarah will be sad because she wants to meet him very much

      A. comes         B. do not come                     C. does not come   D. will come

27.    If you…………………………Tom , tell him I have a message for him.

      A. will meet     B. would meet                      C. meet                    D. met

28.    If you …………too hot during the night , turn down the central heating.

      A. will feel       B. felt                                    C. feel                     D. feels.

29.    If you ……………….……with your dictionary, I ‘d like to borrow it.

      A. finish          B. finished                           C. will finish           D. are finishing.

E5 Choose the best answer A ,B ,C or D

1.         If I ………….….a lot of money now, I …………..a new car.

  A. have /will buy        B. have / would buy      C. had/ will buy               D. had/ would buy.

2.         If I ……………you, I …………………….do that.

      A. am/ will           B. were /would               C. were / will             D. had been/ would.

3.         If I were offered the job, I think I ………………………….…. it.

      A. take                 B. will take                     C. would take           D. would have taken.

4.         I would be very surprised if he…………………….…………..

      A. refuses              B. refused                        C. had refused                D. would refuse.

5.         Many people would be out of work if that factory………..down.

      A. closes               B. had closed                                        C. closed                        D. would close.

6.          If she sold her car, she ……………………..… much money.

      A. gets                  B. would get                      C. will get                      D. would have got.

7.         They would be disappointed if we………………………………….

      A. hadn’t come                                B. wouldn’t come     C. don’t come      D. didn’t come.

8.         Would John be angry if I ……………..…. ……his bicycle without asking?

      A. take             B. took                              C. had taken                       D. would take.

9.         She ………………….….terribly upset if I lost this ring.

      A. will be              B. would be                         C. were                        D. had been.

10.    If someone…………in here with a gun, I would be very frightened.

      A. would walk         B. walks                                  C. had walked                          D. walked.

11.    What would happen if you ……………..to work tomorrow?

      A. don’t go           B. didn’t go           C. won’t go                   D. wouldn’t go.

12.    We ‘ll get wet if we ……………………………….out.

      A. go                     B. did go                       C. went                            D. had gone.

13.    If I go shopping, I …………………….…some food.

      A. buy                         B. will buy               C. would buy           D. would have bought.

14.    If I find it, I ……………………..………you.

A. will tell              B. would tell                        C. had told             D. told.

15.    What would you do if you……………a million dollars?

      A. would win        B. win     C. had won       D. won.

16.    If we took the 6: 30 train, we………………………………too early.

      A. would arrived        B. arrived                  C. will arrived                D. would arrive.

17.    You won’t pass the examination……………you study more.

      A. as long as           B. unless                                                C. if                                     D. whether.

18.    If I were in your place, I ……………………….a trip to England.

      A. will make       B. had made               C. made.                            D. would make.

19.    If I  …………………..…….. you , I’d save some of your lottery winning.

      A. be                B. were                       C. am                          D. was

20.    If I had enough money, I …………………… abroad to improve my English.

      A. will go         B. should go              C. would go                   D. should have go to

21.    If it ………………... convenient, let’s go out for a drink tonight.

      A. be                B. was                      C. were                                     D. is

22.    If you ……………..…. time, please write to me.

  A. have                B. have had                   C. had                       D. has

23.    If  you had the chance, ……………………………… you go finishing?

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

24.    Trees won’t grow ……………………... there is enough water.

      A. if                 B. when                    C. unless                       D. as

25.    If you stay up late the previous night, you ………. sleepy the next morning.

      A. feel              B. to feel       C. feels            D. will feel

26.    If Peter …………………, Sarah will be sad because she wants to meet him very much

      A. comes         B. do not come                     C. does not come   D. will come

27.    If you…………………………Tom , tell him I have a message for him.

      A. will meet     B. would meet                      C. meet                    D. met

28.    If you …………too hot during the night , turn down the central heating.

      A. will feel       B. felt                                    C. feel                     D. feels.

29.    If you ……………….……with your dictionary, I ‘d like to borrow it.

      A. finish          B. finished                           C. will finish           D. are finishing.

1. we do not visit the museum because we have no time

A. If we have time, we will visit the museum B. if we had time, we would visit the museum

C. if we had time, we would have visited the museum D. if we had time, we will have visited the museum

2. ..........i have time, I will go with you

a. if B. unless C. so D. so that

3. If i .........who took your umberella, I would tell you

A. know B. knew C . known D. had know

4. If the automobile had not been in invented years ago,.......for basic transporttation now

a. what we would use b,what would we use c, what we will have used d, what we will be using

5, if the police had not saved me, i ..........at that time

a. will die b. would die c, will have died d, would have died

6. if i had time, i........and help you

a. will come b, would come c, will have come d, would have come

7, if I ......the truth, i would tell you

a, will know b, know c, hvae known d, knew

8, I'll return Bob' pen to him the next time if I .....him

a, will see b, see c, will have see d, have seen

9. I' d have told you if I .......the book

a, would have been b, should have seen c, had seen d,saw

10, If I..............more time , I would not have said such nonsense

a, am b, have been c, will be d,had been

1. we do not visit the museum because we have no time

A. If we have time, we will visit the museum B. if we had time, we would visit the museum

C. if we had time, we would have visited the museum D. if we had time, we will have visited the museum

2. ..........i have time, I will go with you

a. if B. unless C. so D. so that

3. If i .........who took your umberella, I would tell you

A. know B. knew C . known D. had know

4. If the automobile had not been in invented years ago,.......for basic transporttation now

a. what we would use b,what would we use c, what we will have used d, what we will be using

5, if the police had not saved me, i ..........at that time

a. will die b. would die c, will have died d, would have died

6. if i had time, i........and help you

a. will come b, would come c, will have come d, would have come

7, if I ......the truth, i would tell you

a, will know b, know c, hvae known d, knew

8, I'll return Bob' pen to him the next time if I .....him

a, will see b, see c, will have see d, have seen

9. I' d have told you if I .......the book

a, would have been b, should have seen c, had seen d,saw

10, If I..............more time , I would not have said such nonsense

a, am b, have been c, will be d,had been

1. If we meet at 9:30, we (have) will have plenty of time.

2. If you (find) find a skeleton in the cellar, don't mention it to anyone.

3. The zookeeper would have punished her with a fine if she ( feed) had fed the animals..

4. If you pass your examination, we (have)will have a celebration.

5. Lisa would find the milk if she (look) looked for it in the fridge

dạng chia thì thôi mà bạn ?

1. If we meet at 9:30, we (have) _will have_____plenty of time.

2. If you (find) __find____ a skeleton in the cellar, don't mention it to anyone.

3. The zookeeper would have punished her with a fine if she ( feed) _____had fed___ the animals..

4. If you pass your examination, we (have) __will have____a celebration.

5. Lisa would find the milk if she (look) _looked______ for it in the fridge.

20. I _would go_ out if I hadn't been so tired

21. If I _had_ a camera, I would have taken some pictures

22. You won't pass the examination _unless_ you study more

23. If only I _knew_ you wanted to invest money in business

24. If I were to leave my country, I _would be_ disappointed

25. If he hadn't wasted too much time, he _wouldn't have failed_ in his examination

26. If I had taken that English course, I _would have made_ much progress

III. Choose the best option.

20. I…………..out if I hadn’t been so tired.

a. will go b. went c. would have gone d. would go.

21. If I ………..a camera, I would have taken some pictures.

a. have b. had c. would have d. had had.

22. You won’t pass the examination……………you study more.

a. as long as b. unless c. if d. whether.

23. If only I …………you wanted to invest money in business.

a. had known b. knew c. have known d. know.

24. If I were to leave my country , I ……………disappointed.

a. probably be b. would have been c. will be d. would be.

25. If he hadn’t wasted too much time, he…………….in his examination.

a. would fail b. wouldn’t fail c. wouldn’t have failed. d. won’t fail.

26. If I had taken that English course, I ………..much progress.

a. had made b. would have made c. made d. would make.

26. b

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

1 we did not visit the museum because we had no time

a if we have time , we will visit the museum

b if we had time , we would visit the museum

c if we had had time , we would have visited the museum

d if we had had time , we will visit the museum

2 he looked frightened as if he ................

a ghost a sees b is seeing c has seen d had seen

3 ........... resigned , we would have been forced to sack him

a had he not b had not he c he had not d he not had

4 if you ................ me about the bad service , we’d have eaten there

a did not tell b would not have told c had not told d had told

5 the teacher was absent today, so class was canceled . if she ........... absent again tomorrow , class ........ tomorrow,too

a is/will cancel b is / will be canceled c was / would be canceled d was/ would cancel

6 if you .................. to my advice in the first place , you............... in this mess right now

a listen/will be b had listened / would not have been c will listened / would not be d had listened/ would not be

7 if i had been absent from class yesterday , i ............. the math test

a would missed b would have missed c will miss d miss

8 if you ............... here earlier , you ............. her

a had come / would have met b come / meet c came / would meet d comes will meet

9 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

10 if i were , i would work harder

a you would rather not work so hard

b you should work harder

c you should work with me

d do not work so hard