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1.what would you do if you found somw buried treasure?
=>If you were to find some buried treasure, what would you do?
2.working so much will make you tired
=>If you work so much, you will be tired
3.we didn't visit the museum because we hadn't time
=>We would have visited the museum if we had had time
4.Without uou,I would hve given up years ago
=>If it hadn't been for you, i would have given up years ago
5.We didn't go by air only because we hadn't enough money
If we had had enough money, we would have gone by air

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

Bài tập:Chia động từ ở câu điều kiện loại 3
1.If had known that you were in hospital I.......would have visited.....................(visit) you
2.The ground was very soft.But for that, my horse ............would have won..............(win)
3.If you...........had arrived................(arrive) ten minutes earlier you would have got a seat
4.You would have seen my garden at its best if you.......had been..........(be) here last week.
5.But for his quickness I..........would have been................(be) killed.
6.I shouldn't have believed it if I..............hadn't seen............(not see) it with my own eyes
7.If he had sipped you,he........would have fallen...........(fall) 500 metres
8.If he had asked you, would you.......have accepted................(accept)?
9.If I.........had had....... (had) a map I would have been all right
10.If I.......had known.......(know) that you were coming I'd have baked a cake.
- Dang cau dieu kien :
+ Cđk loai 1 : If + S + V(s,es), S + Will/Can/shall…… + V
+ Cđk loai 2 : If + S + V2/ Ved, S +would/ Could/ Should…+ V
+ Cđk loai 3 : If + S + Had + V(pp)/Ved, S + would/ could…+ have + V(pp)/Ved
1. would have visited
2. would have won
3. had arrived
4. had been
5. would have been
6. hadn't seen
7. would have fallen
8. would you have accepted
9. had had
10. had known

II. Complete the second sentence in each pair, using the word given, so that the meaning stays the same:
1. you're not old enough otherwise you would be able to get a motorbike.
were -> Angela, if you were old enough, you would be able to get a motorbike
2. I wouldn't mind being transferred to another city if they offered me a higher salary.
condition -> I wouldn't mind transferring to another city on condition that they offered me a higher salary.
3. We can have dinner here unless you want to go to a restaurant.
want -> If you don't want, we won't have dinner here.
4. Fotunately, they were wearing seat belts, so nobody was seriously injured.
not -> If they hadn't been wearing seat belts, they would have been been seriously injured.

7. Were he ten years younger, he (take) WOULD TAKE part in the voyage around the world
8. Should you come late, they (not let)WON'T LET you in
9. He might get rid of his cough if he (not smoke)DIDN'T SMOKE So much
10. If someone (give) ......GIVES.........you a boat what you (do)WILL YOU DO
11. Water (freezeWILL FREEZE) if the temperature falls below zero
12.1 (warn) WOULD HAVE WARNED you if I had seen you last week
13. He always says hello if he (see) ......SEES.....you
14. What would you do if he (resign) RESIGNED tomorrow?
15. I wouldn't have been so upset if Judy (write) HAD WRITTEN to me earlier
16. Shout if you (see)SEE anything unusually
17. The engine starts if you (turn) TURNS this key
18. If he weren't so bad-temperature, his wife (not leave).WOULDN'T LEAVE.. him so soon after the marriage
19. What (you/say) .WOULD YOU SAY .ifI offered you a job?
20. The children always (get)WILL...GET frightened if they watch horror films
21. If it (not be WEREN'T for you, I would be late
22. I can't help feeling sorry for the hungry children. If only there (be)WERE the world peace i
7) Were he ten years younger, he would take(take) part in the voyage around the world.
8) Should you come late, they won't let (not let) you in.
9)He might get rid of his cough if he (not smoke)didn't smoke so much.
10) If someone (give)gave you a boat what you (do)would you to.
11) Water (freeze)freezes if the temperature falls below zero.
12) I (warn)would have warned you if I had seen you last week.
13) He always says hello if he (see)sees you.
14) What would you do if he (resign)resigned tomorrow?
15) I wouldn't have been so upset if Judy (write)would have written to me earlier.
16) Shout if you (see)see anything unusually.
17) The engine starts if you (turn)turn this key.
18) If he weren't so bad-temperature, his wife (not leave)wouldn't leave him so soon after the marriage.
19) What (you/say)would you say if.I offered you a job?
20) The children always (get)get frightened if they watch horror films.
21) If it (not be) weren't/wasn't for you, I would be late
22) I can't help feeling sorry for the hungry children. If only there were/was(be) the world peace in.
CHÚC BẠN HỌC TỐT

bài tập về câu điều kiện loại 1,2,3
`1 if i ( have )......have....... time , i will write to him
2 if itt is coll , i ( need ) ..........will need..................a heavier coat 3. what are you going to do if you ( have) ...................have....... a holiday?
5 if I meet Helen , I ( give )............will give..............................her your message
6 if flowers don't get any water , they (die)..........will die...........................................
7 if I ( get ) ........get..................... a headache , i usually take some aspirins
8 i will go to the party unless it ( rain)............rains......................................
9 she will buy the car as long as it (not be).........isn't..................... too expensive
10 everything ( be ) ........is....................provided yo tell the truth
11 if he (come)..........comes.........., please tell him that i will be back in a few mintes
12 don't come if they (not call )..........don't call............you
13 if you (need )........need................., why don't you tell me?
14 suppose you (win)..........won...............a lot of money , what would you do ?
15 if i got up earlier, i (not be ).............wouldn't be...............late for work
16 if i didn't fell so tired , i (go ) .....would go..........out with you
17 if you ( not pass).....diđn't pass........the exam, would you take it again ?
18 if i ( not be ) .......hadn't been...........busy yesterday , i would have visited you
19 suppose they had offered her a job , do you think she (take )......would have taken..........it ?
20 if i (know)...........had known................that you were ill , i (go)............would ahve gone........to see you
21 i (see)........will see..........him if i (go)........go................to the party tonight
22 my dark (bark)...........will bark...............if it (hear)..........hears..............anything strong
23 what ......will...........we (do)........do...........if they (come)............come.........tomorrow?
24 if she hadn't been ill yesterday , she (go )......would have gone..........to work now
25 if i can go tomorrow , i (let).........will let......you know
bài tập về câu điều kiện loại 1,2,3
`1 if i ( have )...have.... time , i will write to him
2 if it is coll , i ( need ) ....will need......a heavier coat .
3. what are you going to do if you ( have) .......have..... a holiday?
5 if I meet Helen , I ( give )...........will give.............her your message
6 if flowers don't get any water , they (die).........will die................
7 if I ( get ) .....get..... a headache , i usually take some aspirins
8 i will go to the party unless it ( rain)..........rains.................
9 she will buy the car as long as it (not be)....isn’t...... too expensive
10 everything ( be ) ..........will be.....provided yo tell the truth
11 if he (come)....comes....., please tell him that i will be back in a few mintes
12 don't come if they (not call ).....don’t call........you
13 if you (need )........need........, why don't you tell me?
14 suppose you (win).......won......a lot of money , what would you do ?
15 if i got up earlier, i (not be ).......wouldn’t be....late for work
16 if i didn't fell so tired , i (go ) ....would go....out with you
17 if you ( not pass)...didn’t pass......the exam, would you take it again ?
18 if i ( not be ) ....had been...busy yesterday , i would have visited you
19 suppose they had offered her a job , do you think she (take )........would have taken......it ?
20 if i (know)..........knew........that you were ill , i (go).....would go........to see you
21 i (see).......will see.....him if i (go)......go.......to the party tonight
22 my dark (bark)...........will bark.......if it (hear).....hears....anything strong
23 what ........will ....we (do).....do.....if they (come).......come..tomorrow?
24 if she hadn't been ill yesterday , she (go )......would go....to work now
25 if i can go tomorrow , i (let)......will let...you know

Bài 3: Chọn đáp án đúng.
1. I would have visited you before if there _____ quite a lot of people in your house.
A. hadn't B. hadn't been C. wouldn't be D. wasn't
2. If you had caught the bus, you _____ late for work.
A. wouldn't have been B. would have been
C. wouldn’t be D. would be
3. If I _____, I would express my feelings.
A. were asked B. would ask
C. had been asked D. asked
4. If _____ as I told her, she would have succeeded.
A. she has done B. she had done
C. she does D. she did
5. Will you be angry if I _____ your pocket dictionary?
A. stole B. have stolen C. were to steal D. steal
6. You made a mistake by telling her a lie. It _____ better if you _____ to her.
A. would have been / hadn't lied B. would be / didn't lie
C. will be / don't lie D. would be / hadn't lied
7. John would be taking a great risk if he _____ his money in that business.
A. would invest B. invested C. had invested D. invests
8. She wouldn't have given them all that money if we _____ her to.
A. wouldn’t advise B. won't advise
C. hadn't advised D. didn't advise
9. If the tree hadn't been so high, he _____ it up to take his kite down.
A. could have climbed B. climb
C. is climbing D. climbed
10. If the wall weren't so high, he _____ it up to take his ball down.
A. climbed B. could climb C. is climbing D. climb
11. If I _____ her phone number, I _____ her last night
A. had known / could have phoned B. knew / would have phoned
C. know / can phone D. knew / could phone
12. If he ______ the truth, the police wouldn’t arrest him.
A. tells B. told C. had told D. would tell
13. If you press that button what _____?
A. would happen B. would have happened
C. will happen D. happen
14. She says if she _____ that the traffic lights were red she _____.
A. had realized / would stop B. realized / could have stopped
C. has realized / stopped D. had realized / would have stopped
15. I am very thin. I think, if I _____ smoking, I might get fat.
A. stop B. had stopped C. will stop D. stopped
16. If I _____ that yesterday, I _____ them.
A. had discovered / would inform
B. had discovered / would have informed
C. had discovered / could inform
D. discovered / can inform
17. If you _______ to the course regularly, they ________ a certificate last year.
A. go / gave B. go / give
C. had gone / would have given D. went / would give
18. I think he is not at home. If he _____ in, he ______ the phone.
A. was / answered B. were / would answer
C. were / would have answered D.had been / would have answered
19. If I ______ in London now, I could visit British Museum.
A. were B. had been C. have been D. would be
20. If Columbus _______ money from Queen Isabella, he _______ across the Atlantic.
A. do not receive / could not sail
B. had not received / might not have sailed
C. did not receive / might not have sailed
D. would not receive / might not sail
1. I would have visited you before if there _____ quite a lot of people in your house.
A. hadn't B. hadn't been C. wouldn't be D. wasn't
2. If you had caught the bus, you _____ late for work.
A. wouldn't have been B. would have been
C. wouldn’t be D. would be
3. If I _____, I would express my feelings.
A. were asked B. would ask
C. had been asked D. asked
4. If _____ as I told her, she would have succeeded.
A. she has done B. she had done
C. she does D. she did
5. Will you be angry if I _____ your pocket dictionary?
A. stole B. have stolen C. were to steal D. steal
6. You made a mistake by telling her a lie. It _____ better if you _____ to her.
A. would have been / hadn't lied B. would be / didn't lie
C. will be / don't lie D. would be / hadn't lied
7. John would be taking a great risk if he _____ his money in that business.
A. would invest B. invested C. had invested D. invests
8. She wouldn't have given them all that money if we _____ her to.
A. wouldn’t advise B. won't advise
C. hadn't advised D. didn't advise
9. If the tree hadn't been so high, he _____ it up to take his kite down.
A. could have climbed B. climb
C. is climbing D. climbed
10. If the wall weren't so high, he _____ it up to take his ball down.
A. climbed B. could climb C. is climbing D. climb
11. If I _____ her phone number, I _____ her last night
A. had known / could have phoned B. knew / would have phoned
C. know / can phone D. knew / could phone
12. If he ______ the truth, the police wouldn’t arrest him.
A. tells B. told C. had told D. would tell
13. If you press that button what _____?
A. would happen B. would have happened
C. will happen D. happen
14. She says if she _____ that the traffic lights were red she _____.
A. had realized / would stop B. realized / could have stopped
C. has realized / stopped D. had realized / would have stopped
15. I am very thin. I think, if I _____ smoking, I might get fat.
A. stop B. had stopped C. will stop D. stopped
16. If I _____ that yesterday, I _____ them.
A. had discovered / would inform
B. had discovered / would have informed
C. had discovered / could inform
D. discovered / can inform
17. If you _______ to the course regularly, they ________ a certificate last year.
A. go / gave B. go / give
C. had gone / would have given D. went / would give
18. I think he is not at home. If he _____ in, he ______ the phone.
A. was / answered B. were / would answer
C. were / would have answered D.had been / would have answered
19. If I ______ in London now, I could visit British Museum.
A. were B. had been C. have been D. would be
20. If Columbus _______ money from Queen Isabella, he _______ across the Atlantic.
A. do not receive / could not sail
B. had not received / might not have sailed
C. did not receive / might not have sailed
D. would not receive / might not sail

VII. Choose the sentence which has the same meaning as the root one.
1. " I couldn't have made it without your help' means
A. I couldn't have made it if you helped me.
B. I couldn't have made it if you had helped me.
C. I couldn't have made it if you hadn't helped me.
D. I couldn't have made it if you didn't help me.
2. She didn't stop her car because she didn't see the signal.
A. If she saw the signal, she would stop her car.
B. If she had seen the signal, she would stop her car.
C. If she had seen the signal, she would have stopped her car.
D. If she saw the signal, she would have stopped her car.
3. His flight was deplayed so he couldn't be here on time.
A. He would be here in time if his flight were not deplayed.
B. He would have been here in time if his flight hadn't been deplayed.
C. He would be here in time if his flight hadn't been deplayed.
D. He would have been here in time if his flight weren't deplayed.
4. Without your help, I couldn't overcome the problem.
A. If you don't help me, I can't overcome problem.
B. If you didn't help me, I couldn't overcome problem.
C. If you hadn't helped me, I couldn't overcome problem.
D. If you hadn't helped me, I couldn't have overcome problem.

Gạch chân dưới đáp án đúng:
1. If that hat costs much, I (would have bought / will buy / bought / would buy) a small one.
2. If you (drive / drove / had driven / driven) more carefully, you wouldn't have had so many accidents.
3. If I (make / makes / made / had made) this mistake again, my teacher will get angry with me.
4. If I spoke English, my job (was / were / will be / would be) a lot easier.
5. If he (goes / went / had gone / would go) to London yesterday, he (met / would meet / had met / would have met) his old friend.
6. I will lend them some money if they (ask / will ask / asked / had asked) me.
7. If we had known who he was, we (would have invited / have invited / will invite / would invite) him to speak at our meeting.
8. My dog will bark if it (hear / hears / heard / had heard) any strange sound.
9. If I (had / had had / will have / have) enough money, I would buy a house.
10. They (won't let / not let / wouldn't let / hadn't let) you in if you came late.
11. If you (not go / don't go / hadn't gone / didn't go) away, I'll send for a policeman.
12. If I (were / am / be / was) in your place, I would accept Mr.Anderson's invitation.
13. If I (win / had won / won / winning) a big prize in a lottery, I'd give up my job.
14. If I (is / are / was / were) you, I (will tell / told / would tell / would have told) the truth.
15. I was busy. If I (have / had / had had / have had) free time. I (would go / will go / would have gone / go) to the cinema with you.
16. Why didn't you attend the meeting?
Oh, I did not know. If I (know / knew / had known / known) I (would come / would have come / will come / had come) there.
17. What (would / will / did / had) we do if they do not come tomorrow?
18. If I had enough time now, I (would write / write / will write / wrote) to my parents.
19. It's too bad Helen isn't here. If she (is / was / were / are) here, she (will know/ knows / would know / would have known) what to do.
20. If I don't eat breakfast tomorrow morning, I (will get / got / would get / had got) hungry during class.
.
1. If they offered you the job, would you accept? (WERE)
=>Were they to offer you the job, would you accept?
2. Without you, I would have given up years ago. (BEEN)
=>If it hadn't been for you, I would have given up years ago.
.
Chúc bạn học tốt!
1. If they offered you the job, would you accept? (WERE)
=> Were they offer you the job , would you accept ?
2. Without you, I would have given up years ago. (BEEN)
=> If it hadn't been for you , I would have given up years ago