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33/ I am not English , which is why I have to take this exam.
=>If I was English, I wouldn't have to take this exam.
34)she forgot her toothbrush when she was paking
=>she didn't remember her toothbrush when she was paking
35)in spite of having a terrible headache she went to work
=>she went to work although she had a terrible headache
36)he felt very nervous at the interview but he got the job
=>he got the job despite feeling very nervous at the interview

1.They didn't let Tom take his dog into the building.
-> Tom wasn't let take his dog into the building.
2.I'll get someone to repair the television tômorrow
->I'll have the television repaired tomorrow.
3.In order not to get any trouble,I'm going to extend my visa.
->So that I won't get any trouble, I'm going to extend my visa.
4.She sings now much better than she did last year.
->Last year she did not sing as weel as this year.
5."Would you mind opening the window?"said the man to me
->The man asked me to open the window.
6.Because he drove so carelessly,he had the accident.
->If he had driven more carefully, he wouldn't have had the accident.
7.As soon as the ship arrived at the port,the victims were taken to hospital
->On
8."Did you attend the lecture last week?"Jane asked me
->Jane wanted to know if I had attend the lecture the previuos week.
1.They didn't let Tom take his dog into the building.
-> Tom......wasn't let take his dog into the building ...........
2.I'll get someone to repair the television tômorrow
->I'll have....the television repaired tomorrow ..........
3.In order not to get any trouble,I'm going to extend my visa.
->So that...I don't get any trouble, I'm going to extend my visa........
4.She sings now much better than she did last year.
->Last year she did not........sing as well as she does now.........
5."Would you mind opening the window?"said the man to me
->The man.......asked me to open the window........
6.Because he drove so carelessly,he had the accident.
->If...he hadn't driven so carelessly, he wouldn't have had the accident........
7.As soon as the ship arrived at the port,the victims were taken to hospital
->On.......the safe arrival of the ship at the port, the victims were taken to hospital .......
8."Did you attend the lecture last week?"Jane asked me
->Jane wanted......to know if I had attended the lecture the previous week......

1. Because I am sick, I do not go out
-> Because of my sickness, I do not go out.
2. Because the water is polluted, we can't swim in that river
-> Because of the polluted water, we can't swim in that river.
3. Because Nga has had a sore leg, she has difficulty in walking.
-> Because of a sore leg, she has difficulty in walking.
4. Because he behaved badly, he found himself in trouble.
-> Because of his bad behaviour, he found himself in trouble.
5. Because it was snowing, we didn't go out for a walk.
-> Because of snowing, we didn't go out for a walk.
6. Because of his good looks, he is popular with many girls.
-> Because he is good looking, he is popular with many girls.
7. Because of his serious sickness, he couldn't come to the class.
-> Because he has a serious sick, he couldn't come to the class.
8. Because of too much exhaust fume, people have to wear gauze masks in the street.
-> Because there is so much exhaust fume, people have to wear gauze masks in the street.
9. Because of their good performance, they won the first prize.
-> Because they performed well, they won the first prize.

1: Hoàn thành các câu sau với các các từ ở trong ngoặc câu điều kiện loại 1 2 3
1) will have
2) looked
3) had fed
4) would understand
5) would arrive
6) would have had
7) swim
8) press
9) had asked
- send/will come
- will not understand/whisper.
- will not survive/do not take
- press/will save
- will cross/fly
- will answer/has
- wears/will not stay
- touch/will not scream.
- will forget/do not phone
- will remember/give
10) would call
1: Hoàn thành các câu sau với các các từ ở trong ngoặc câu điều kiện loại 1 2 3
1) If we meet at 9:30, we....will have.......(to have) plenty of time.
2) Lisa would find the milk if she........looked...(to look) in the fridge.
3) The zookeeper would have punished her with a fine if she......had fed.....(to feed) the animals.
4) If you spoke louder, your classmates...would understand........(to understand) you.
5) Dan.....would arrive......(to arrive) safe if he drove slowly.
6) You......would have had.....(to have) no trouble at school if you had done your homework.
7) If you...... swim.....(to swim) in this lake, you'll shiver from cold.
8) The door will unlock if you...... press.....(to press) the green button.
9) If Mel......had asked.....(to ask) her teacher, he'd have answered her questions.
10) I...would call........(to call) the office if I was/were you.
Bài tập 2 về câu điều kiện loại 1
1) If we...send........(to send) an invitation, our friends......will come.....(to come) to our party.
2) He....will not understand.......(not/to understand) you if you whisper. (to whisper).
3) They....will not survive.......(not/to survive) in the desert if they...do not take........(not/to take) extra water with them.
4) If you....press.......(to press) CTRL + s, you......will save.....(to save) the file.
5) You.....will cross......(to cross) the Channel if you..fly.........(to fly) from Paris to London.
6) Fred......will answer.....(to answer) the phone if his wife (to have)has a bath.
7) If Claire.....wears......(to wear) this dress at the party, our guests.....will not stay......(not/to stay) any longer.
8) If I.....touch......(to touch) this snake, my girlfriend....will not scream........(not/to scream).
9) She......will forget.....(to forget) to pick you up if you do not phone (not/to phone) her.
10) I......will remember.....(to remember) you if you....give.......(to give) me a photo.

Fill in each gap with a suitable preposition
1. Maryam was really impressed.by...the beauty of Hue
2. It seems difficult.for...me to meet her now
3. He doesn't depend.on...his parents
4. If you have any trouble, ask.for..help
5. This guidebook is full.of..usefull information
6. We still keep in touch..to..each other although we live away..from..each other
7. He will go to China.at..the end.of..this week
8. She went out.without...saying a word
9. What do you ofen do.at..the weekends?

1. If I had enough money, I__________ abroad to improve my English.
A. will go B. would go C. went D. should have go to
2. Do you think there would be less conflict in the world if all people _...... the
same language?
A. spoke B. speak C. had spoken D. will speak
3. If you can give me one good reason for your acting like this, __________this
incident again.
A. I will never mention B. I never mention
C. will I never mention D. I don"t mention
4. If I had known you were asleep, I ……._so much noise when I came in.
A. didn"t make B. wouldn"t have made C. won"t make D. don"t make
5. Unless you __________all of my questions, I can't do anything to help you.
A. answered B. answer C. would answer D. are answering
6. If Jake __________to go on the trip, would you have gone?
A. doesn"t agree B. didn"t agree C. hadn"t agreed D. wouldn"t agree
7. J: "John went to the hospital alone"
K: "If __________, I would have gone with him".
A. had he told me B. he had told me C. he has told me D. he
would tell me
8. If you __________, I would have brought my friends over to your house
yesterday to watch T.V, but I didn't want to bother you.
A. had studied B. studied C. hadn't studied D. didn't study
9. Peter: "Did you need help with your Math last night?".
Mary: "If I had needed, I __________you".
A. would call B. called C. would have called D. will call
10. If someone __________ in to the store, smile and say, "May I help you?"
A. comes B. came C. come D. should come
11. "Here's my phone number".
"Thanks. I'll give you a call if I __________some help tomorrow"
A. will need B. need C. would need D. needed
12. If I didn't work for an accounting firm, I __________in a bank now.
A. work B. will work C. have worked D. would work
13. The death rate would decrease if hygienic conditions __________improved.
A. was B. is C. were D. had been
14. The education in Japan __________if the basic principles of education had not
been taken into consideration.
A. would go down B. would have gone down
C. went down D. had gone down
15. The patient will not recover unless he __________ an operation.
A. had undergone B. would undergo C. undergoes D. was undergoing
16. If she __________ him, she would be very happy.
A. would meet B. will meet C. met D. should meet
17. If he __________ a thorough knowledge of English, he could have applied for
this post.
A. had had B. had C. has D. has had
18. If I __________the same problem you had as a child, I might not have
succeeded in life as well as you have.
A. have B. would have C. had had D. should have
19. The bench would collapse if they __________on it.
A. stood B. stand C. standing D. stands
20. If it __________convenient, let's go out for a drink tonight,
A. be B. is C. was D. were
II. Put the verbs in brackets in correct tenses.
21/ If I (have) _____had___ a typewriter, I could type it myself.
22/ If I had known that you were in hospital, I (visit) ______would have visited__ you.
23/ You could make much progress if you (attend) ___attended_____ class regularly.
24/ If I (know) ____knew____ his telephone number, I would give it to you.
25/ If you (arrive) ____had arrived____ ten minutes earlier, you would have got a seat.
26/ If he (study) ____studies____ harder, he can pass an exam.
27/ She may be late if she (not hurry) ___doesn't hurry_____.
28/ Tell him to ring me if you (see) ____see____ him.
29/ If you (speak) ____had spoken____ more slowly,he might have understood you.
30/ What (you do) ____would you do____ if you got fat?
31. If we meet at 9:30, we (have) _______will have__________plenty of time.
32. If you (find) ________find_________ a skeleton in the cellar, don't mention it to
anyone.
33. The zookeeper would have punished her with a fine if she (feed) _____had fed____the
animals.
34. If you pass your examination, we (have) …………will have……….._a celebration.
35. Lisa would find the milk if she (look) _________looked________ for it in the fridge.
36. What (happen) _________will happen________if I press this button?
37. The door will be unlocked if you (press)________press_________ the green button.
38. I should have voted for her if I (have) _________had had________ a vote then.
39. If you go to Paris, where you (stay) ________will you stay_________?
40. If you (swim) _______swim__________ in this lake, you'll shiver from cold.
41. If someone offered to buy you one of those rings, which you (choose)
……will you choose.........?
42. The flight may be cancelled if the fog (get) _________gets________thick.
43. If the milkman (come) _______comes__________, tell him to leave two pints.
44. I (call) ………would call……….._ the office if I were you.
45. Someone (sit) ________will sit_________on your glasses if you leave them there.
46. You would hear my explanation if you (not talk) ________didn't talk_________so much.
47. What I (do) _______will I do__________if I hear the burglar alarm?
48. If you (read) ______read___________the instructions carefully, you wouldn't have
answered the wrong question.
49. If Mel (ask) _______had asked__________ her teacher, he'd have answered her
questions.
50. I would repair the roof myself if I (have) …………had……._a long ladder.
1.She didn’t take the trouble to find out why so she doesn’t understand. had
=> She ……………………would have understood if she had……………… taken the trouble to find out why.
2.We’re not living together any more because she went away to university. still
=> We ……………………would have been still living together…………….. if she hadn’t gone away to university.