1. If you are not careful, you will cut yourself with that knife.     

-> Unless you are careful, you will cut yourself with that knife.      

2. If you do not like this one, I’ll bring you another.   

-> Unless you like this one, I’ll bring you another.   

3. I’ll not be able to do any work if I do not have a quiet room.         

-> I’ll not be able to do any work unless I have a quiet room.

Exercise 1:

1. I won't go to school unless I feel better.
2. Tony won't walk to you unless you question him. 
3. You'll be cold unless you put your overcoat on.
4. You will fail the exam unless you work hard.
5. You'll get a cold unless you keep your feet dry.
6. I won't go to the party unless you go.
7. I'll miss my flight unless I leave now.
8. I can't send you a postcard unless you give me your address.
9. I can't build a school for the poor unless I win a big lottery.
10. I will call the police unless you leave me alone.

correct the verb form

1,if you(go)..........go............away,please write to me

2,if you (be)............are...........in,i should have given it to you

3,if he(he).............has..........another cake,he will be sick

4,i (not do).........wouldn't do............that if i (be)......were............you

5,if he(take).............takes..........my advice everything can go well

6,i would have come sooner if i (know)......have known...........you were here

7,he never does homework .if he (do).....didn't do............his homework he(not worry).....wouldn't worry............about his examination

9,what you (do)........will you do.............if she refuses your invitation?

10,if today (be).........is..........sunday,we(go)...........will go......to the beach

11,unless they (pass)......pass......their examinations thay would join the army

12,you(be).........will be.............ill if you drink that water

13,if tom (go).......went..........to bed earlier he would not be so tired

14,had we known your address,we(write)......wrote..............you a letter

15if it is raining heavily,we (not go)........won't go.............for a donkey ride

16,if he (try).........tries...........hard,he 'll pass the examination

18,if she(not be)............haven't been.......busy,she would have come to the party

19,if i(finish).....finish.........the work in time i (go)........will go...................to the football game

20,if you(see).........see........mary today,please (ask)........ask...........her to call me

1.If you (go)go away, please write to me

2.If you (be)had been in. I would have given it to you

3.If he (eat)eats another cake, he will be sick

4.I (not do)wouldn't do that if I (be)were you

5.If he (take)takes my advice, everything can go well

6.I would have come sooner if I (know)had known you were here

7.He never does homework. If he (do)did his homework, he (not worry)wouldn't worry about this exam

8.It's too bad we lost the game. If you (play)had play for us, we (win) would have won

9.What will you (do)do if she refuses your invitation

10.If today (be)were Sunday, we(go)would go to the beach

11.I wish I (see)had seen her off at the airport yesterday

12.Tom wishes he (have)had enough money to buy a new car now

13. Mary wishes she (become)would become an astronaut someday

14.He wishes he ( not buy)didn't buy that old car

15.If we (pollute)pollute the water, we will have no water to use

16.If we cut down trees in the forest, there (be)will be big flood every year

17.If he (not pass)doesn't pass the driving test, we (be)will be disappointed

18.I (not write)won't write to you if you (not send)don't send me your address

19.The sea (get)gets warmer if the earth (get)gets warmer

20.If we (not protect)don't protect the animals, they (kill)will be killed

21.Our lives(destroy)would destroy if the earth didn't go round

22.We will go for a picnic if the weather(be)is fine tomorrow

23.If I were you I (travel)would travel around the world

24.If there were flying saucers, there (be)would be traces of their landing

25.I would take photos of UFOs if I (see) saw them

26.What (you say)would you say if I offered you a job

27.The children always (get)get frightened if they watch horror films

28.If it (not be) wasn't for you, I would be late

29.I can't help feeling sorry for the hungry children. If only there (be)was peace in the world

30. Were I to become president, my first act (be)would be to help the poor

31.If he (listen)listened to his father's advice, he would still be working here

32.If she hadn't stayed up late lastnight, she (not be)wouldn't have been tired now

nhanh dữ

Rewrite these sentences with conditional sentence type 1

1.Unless you write your lessons, you will not understand.

If you don't write your lessons, you will not understand.

2. Unless you close the door, you will get a cold.

If you don't close the door, you will get a cold.

3. If she isn't thirsty, she will not stop.

Unless she is thirsty, she will not stop.

4. Unless there is a car, he can't get there in time.

If there isn't a car, he can't get there in time.

5. Unless they buy that house, they will have nowhere to live.

If they don't buy that house, they will have nowhere to live.

6. If he learns hard, he should be rewarded.

Should he learn hard, he will be rewarded.

Rewrite these sentences with conditional sentence type 1

1.Unless you write your lessons, you will not understand.

=> If you .................................don't write your lessons, you will not understand..............................................

2. Unless you close the door, you will get a cold.

=> If you ................................don't close the door, you will get a cold.............................................

3. If she isn't thirsty, she will not stop.

=> Unless .................................she is thirsty, she will not stop............................................

4. Unless there is a car, he can't get there in time.

=> If there ................................isn't a car, he can't get there in time..........................................

5. Unless they buy that house, they will have nowhere to live.

=> If ......................................they don't buy that house, they will have nowhere to live..............................................

6. If he learns hard, he should be rewarded.

=> Should .................................he learn hard, he will be rewarded......................................

Chúc bạn học tốt!

Choose the sentence that has the same meaning as the first.

24. If you are not careful, you will cut yourself with that knife.

A. Unless you are careful, you will cut yourself with that knife.

B. If you are careful, you will cut yourself with that knife.

C. Unless you are not careful, you will cut yourself with that knife.

D. Unless you were careful, you will cut yourself with that knife.

25. Because he doesn’t leave immediately, I call a policeman.

A. Unless he leaves immediately, I won’t call a policeman.

B. If he leaves immediately, I won’t call a policeman.

C. Unless he leaves immediately, I will call a policeman.

D. If he left immediately, I wouldn’t call a policeman.

26. Today isn’t Sunday, so the pupils can’t go swimming.

A. If today is Sunday, the pupils could go swimming.

B. If today were Sunday, the pupils could go swimming.

C. The pupils could go swimming unless today is Sunday.

D. The pupils could not go swimming if today isn’t Sunday.

27. Stop talking or you won’t understand the lesson.

A. If you don’t stop talking, you won’t understand the lesson.

B. If you don’t stop talking, you wouldn’t understand the lesson.

C. If you hadn’t stopped talking, you wouldn’t understand the lesson.

D. If you hadn’t stopped talking, you wouldn’t have understood the lesson.

28. If the homework is difficult, I will ask you for help.

A. Unless the homework is easy, I won’t ask you for help.

B. Unless the homework is difficult, I will ask you for help.

C. Unless the homework is easy, I will ask you for help.

D. Unless the homework isn’t difficult, I won’t ask you for help.

29. I’ll let you borrow the book but you must promise to return it next week.

A. If you promise to return the book, I let you borrow it.

B. If you promised to return the book, I’ll let you borrow it.

C. If you promise to return the book next week, I’ll let you borrow it.

D. If you promise to return the book next week, I won’t let you borrow it.

1. doesn't hurry

2. will be

3. gives

4. won't pass

5. doesn't stop

Trắc nghiệm câu điều kiện từ 21 - 30
21-If she …..him,she would be very happy.
A-would meet B-will meet C-is meeting D-should meet
22-If he …..a thorough knowledge of English, he could have applied for this post.
A-had had B-had C-has D-has had
23-If I had enough money,I……abroad to improve my English.
A-will go B-would go C-should go D-should have go to
24-The bench would collapse if they……on it.
A-stood B-stand C-standing D-stands
25-If it……convenient, let’s go out for a drink tonight,
A-be B-is C-was D-were
26-If you……time, please write to me.
A-have B-had C-have had D-has
27-I shouldn’t go there at night if I ….you.
A-am B-was C-be D-were
28-If I …….get a pole, I will go fishing.
A-can B-could C-may D-might
29-If you had the chance,…….you go fishing?
A-did B-may C-would D-do
30-If you …..a choice, which country would you visit?
A-have B-had C-have had D-will have
Trắc nghiệm câu điều kiện từ 31-40
31-She will acept the offer if you persuade her.
A-unless B-because C-provided that D-otherwise
32-If he were here,he would accompany you on the piano.
A-Supposing he were here B-because he were here C-were he here D-Both A and C
33-If she had gone abroad, she would have let you know.
A-had gone she abroad B-had she gone abroad
C-Because she had gone abroad D-while she had gone abroad
34-Trees won’t grow…….there is enough water.
A-if B-when C-unless D-as
35-……….she agreed, you would have done it.
A-if B-had C-should D-would
36-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
37-If I had taken that English course, I…….much progress.
A-had made B-would have made C-made D-would make
38-If I were in your place, I….a trip to England.
A-will make B-had made C-would make D-made
39-If you inherited a million pounds,what…….with the money?
A-do you do B-will you do C-would you do D-are you going to do
40-If you……..as I told you, you…….in such predicament now.
A-Did/would not be B-had done/had not been
C-do/would not be D-had done /would not be

Trắc nghiệm câu điều kiện từ 41-50
41-Come and work for my company iif you…….better to do.
A-have nothing B-will have nothing C-had something D-had nothing
42-If you had done as I told you ,I think you……….
A-would succeed B-would have succeeded C-could succed D-had succeeded
43-If he had got half a mark more, he ……in the exam.
A-wouldn’t fail B-wouldn’t have failed C-won’t fail D-won’t be failing
44-If it……… tomorrow, we may postpone going.
A-rains B-will rain C-shall rain D-raining
45-If you hadn’t watched that late movie last night, you……sleepy now.
A-wouldn’t have been B-wouldn’t be
C-might have not been D-would’t have been being
46 - If you …….as I told you, you ……….sorry now.
A-did/would not be B-had done/had not been
C-do /would not be D-had done/would not be
47-If I………I will let you know .
A-am staying B-will stay C-do stay D-would stay
48-“Are you thinking about going to the Bahamas for the hollidays?”
“No,but if I ……the time , I would definitely go”
A-have B-had C-have had D-would have
49-“It’s really raining”
“Yes.If the weather……, we’ll have to camp somewhere else”.
A-would get worse B-might get worse C-get worse D-should get worse
50-“Why did you only send twenty dollats in the mail?”
“If I had had more money, I ……..given you more.”
A-will have B-would have C-would D-have

Trắc nghiệm câu điều kiện từ 51-60
51-“My boss made me work overtime again”.
“If I were you,I……….my job”.
A-would quit B-will quit C-must quit D-quit
52-“Thanks for your help”.
“…….want more information,call again tomorrow”.
A-were you B-had you to C-might you D- should you
53-“Remember the day I drove you to the airport?”.
“If you hadn’t ……me ,I would have been late”.
A-take B-taking C-took D-taken
54-“Sally finally got here from Chicago”.
“If she had come earlier,we……taken her to the play”.
A-would be B-would have C-had have D-would had
55-“I don’t know whether to take that mathematics course or not”.
“If ………you, I’d take it”.
A-I am B-I will be C-I had been you D-I were
56-“My car broke down when I was leaving Detroit and I had to take the bus”.
“………,we would have picked you up”.
A-had we known B-if we have known C-we had known D-if we did know
57-“It’s beginning to rain”.
“……..,we won’t be able to finish the ball game”.
A-If it stops B-should it stop C-unlees it stops D-if it didn’t stop
58-“Did you need help with your math last night?”.
“If I had, I………you”.
A-would call B-called C-would have called D-will call
59-“I’d really like some lunch but I have so much work to do”.
“……..what you want and I can get it for you”.
A-tell me B-if you would say me C-you will tell to me D-if you tell me
60-“John went to the hospital alone”,
“If …….,Iwould have gone with him”.
A-had he told me B-he had told me C-ha has told me D-he would tell me

I. Supply the correct verb tenses in the second conditional
1. She would get a good job if she (have)_had _a university degree.
2. If she could cook, she (not go ) wouldn't go out to eat
3. If my uncle (be) were a manager, I (work) would work for him.
4. I give you a lift if my car (not be) _weren't_ _out of order.
5. She (give) would give me a hand if she (not be) weren't_ _busy.
6. If today (be) were Sunday,I (stay)_would stay _in bed all day long.
7. IF I (not go ) didn't go to school tomorrow, I (get) would get_ up late.
8. If I (be) were you, I (not go). wouldn't go out.
9. If she (low) lowed_ _my address, she (visit) _would visit me.
10. If I (be) were a millionaire, 1 (buy) would buy you a tree house.
11. If she (call called_ me, I (help) _would help_ _her.
12. Ifl(be) were a millionaire, I (buy)_would buy you a car.
13. They (go). would go on a picnic if the weather (be) _were _ fine. But the weather forecast says it will be rainy.
14. If she (take) took my advice, she (become)would become a doctor now.
15. If my bike (not be) __weren't _ out of order, I take) would take you home.
16. If I (be) were _her, 1 (not take) wouldn't take__his advice.
17. If my car (not break) _didn't break_ down, 1 (take) would take you to the airport
18. She (not go) wouldn't go out if it (not stop)didn't stop raining
19. She (travel) _would travel _around the world if she (have)had lots ofmoney.
20. We [visit) would visit Eiffel Tower if we (be) _were _ _ in Paris.

#Yumi

I. Supply the correct verb tenses in the second conditional
1. She would get a good job if she (have)_had _a university degree.
2. If she could cook, she (not go) wouldn't go out to eat
3. If my uncle (be) were a manager, I (work) would work for him.
4. I give you a lift if my car (not be) __weren't _out of order.
5. She (give) would give me a hand if she (not be) _weren't _busy.
6. If today (be) were Sunday, I (stay)_would stay _in bed all day long.
7. IF I (not go) didn't go to school tomorrow, I (get) would get_ up late.
8. If I (be) were you, I (not go) wouldn't go out.
9. If she (low) _ lowed_my address, she (visit) would visit_ me.
10. If I (be) were a millionaire, 1 (buy) would buy you a tree house.
11. If she (call) called_ me, I (help) __would help _her.
12. Ifl (be) were a millionaire, I (buy)_would buy you a car.
13. They (go) would go on a picnic if the weather (be) _were_ fine. But the weather forecast says it will be rainy.
14. If she (take) took my advice, she (become) would become a doctor now.
15. If my bike (not be) _weren't__ out of order, I (take) would take you home.
16. If I (be) were her, 1 (not take) _wouldn't take_his advice.
17. If my car (not break) _didn't break_ down, 1 (take) would take you to the airport
18. She (not go) wouldn't go out if it (not stop) didn't stop raining
19. She (travel) _would travel_around the world if she (have) had lots of money.
20. We (visit) would visit Eiffel Tower if we (be) __were _ in Paris.

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