EX : Complete each of the following sentences in such a way that it means the same as the sentence printed before it.

1/ we didn't know your phone number ,so we could not contact you

If we had known your phone number, we could have contacted you

2/ Because Simon doesn't live near his mother,he can't visit her often

If Simon lived near his mother, he could visit her often.

3/ she didn't hurry , so she missed the train

If she had hurried, she would have caught the train.

6/ John is fat because he eats so many chips

If John didn't eat so many chips, he wouldn't be fat.

7/ Bill never does anything if you don't tell him what to do.

-> Unless................... you tell Tom what to do, he will never do anything.........................................

8/ They don't have enough time so they cannot do me a favour.

If they had enough time, they could do me a favor.

9/we did not visit the museum because we had no time .

If we had had time, we would have visited the museum.

10/ we can't buy this car because it is very expensive

This car is too expensive for me to buy.

11/ Susan felf sick because he ate 4 cream cakes

If Susan hadn’t ate 4 cream cakes, he wouldn’t have felt sick

EX : Complete each of the following sentences in such a way that it means the same as the sentence printed before it.

1/ we didn't know your phone number ,so we could not contact you

=> If we had known your phone number , we would have contacted you

2/ Because Simon doesn't live near his mother,he can't visit her often

=> If Simon lived near his mother , he could visit her often

3/ she didn't hurry , so she missed the train

=> If she had hurried , she wouldn't have missed the train

6/ John is fat because he eats so many chips

=> If John didn't eat so many chips , he wouldn't be fat

7/ Bill never does anything if you don't tell him what to do.

-> Unless....Bill never does anything , you tell him what to do ........

8/ They don't have enough time so they cannot do me a favour.

=> If they had enough time , they could do me a favour

9/we did not visit the museum because we had no time

=> If we had had time , we would have visited the museum

10/ we can't buy this car because it is very expensive

=> If it weren't very expensive , we could buy this car

11/ Susan felf sick because he ate 4 cream cakes.

=> If Susan hadn't eaten 4 cream cakes , he wouldn't have felt sick

use IF

1. That car is too epensive, so I'm not going to buy it.

i would buy that car if it wasn't too expensive

2. We don't go shopping very often because we can't afford it.

We'd go shopping more often if we could afford it.

3. They don't understand the problem. They won't find a solution

if they understood the problem, They would find a solution

4. I can't phone you because I don't know your telephone number.

if I knew your telephone number, I could phone you

5. It's raining heavily, so I can't see her on time

if it wasn't raining heavily, I could see her on time​

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

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

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

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

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

You (be)...will be...ill if you drink that water

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

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

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

had we know your address, we(write)......would have written....you a letter

if it's raining heavil, we (not go)......won't go.....for a donkey ride

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

i could understand the french teacher if she ( speak )....spoke.......more slowly

If she ( not be ).....hadn't been......busy, she would have come to the party

If you (see)...see....Mary today, please (ask)....ask.....her to call me

B. viết lại những câu sau sao cho nghĩa của câu không thay doi

1. that man doesn't work hard. he can't earn more money

if that man worked hard, he could earn more money

2. i don't tell him the answer because he is from home

if he weren't from home, i would tell him the answer

3. my friends and i don't have enough money, so we will not buy a house of our own

if my friend and I had enough money, we would buy a house of our own

4. the weather isn't better now, so we can't go for a walk

if the weather were better now, we could go for a walk

5.i don't know his address, and i don't give it to you

if i knew his address, i would give it to you

6. he does not work slowly enough, so he makes many mistakes

if he worked slowly enough, he wouldn't make many mistakes

7. I am not sent to prison. She does't visit me

if i were sent to prison, she would visit me

8.I don't win a big prize in a lottery, so I don't give up my job

if i won a big prize in a lottery, i would give up my job

9.the doctor can't see many patients because he is so late

if he weren't so late, the doctor could see many patients

10. We don't visit them in Hanoi because tickets are expensive

if tickets weren't expensive, we would visit them in hanoi

21. If I were you, I would tell her the truth.

22. Why didn’t you attend the meeting?

Oh, I didn't know indeed. If I knew, I would come there.

23. What will we do if they won't come tomorrow?

24. If you meet him, remember didn't tell him what I had just said to you.

25. If I had enough time now, I would write to my parents.

26. It’s too bad Helen isn’t here. If she was there, she would know what to do.

27. If I don't eat breakfast tomorrow morning, I will get hungry during class.

28. I would change the present economic policy if I was the President of the United States.

29. If the weather is nice today, we will go to the zoo.

30. If I had been in your position, I would have done that.

31. If we meet at 9:30, we will have plenty of time.

32. Lisa would find the milk if she looked in the fridge.

33 The zookeeper would have punished her with a fine if Trang 28 she had fed the animals. 

I/ CONDITIONAL- TYPE 1
1/ If we ( send)__send___ an invitation, our friend (come)___will come__ to our party
2/ he __will not understand__ (not/ understand) you if you (whisper)_whisper__
3/ they (not/ survive)__will not survice ___ in the desert if they don't take (not/take) extra water with them
4/ if you (press)__press__CTRL +S, you (save)_will save___ the file
5/ you (cross)_will cross__ the Channel if you (fly)_fly__ from Paris to London
6/ fred (answer) __will answer __ the phone if his wife (have)_has__ a bath
7/ if Claire (wear) __wears_ this dress at the party, our guests (not/stay)__will not stay__ any longer
8. if I (touch)_touch___this snake, my girlfriend (not/scream)__will not scream__
9. she (forget)__will forget__to pick you if you (not/phone)__do not phone__ her
10. i (remember) ___will remeber _you if you (give)_give___me a photo

II/ Conditional TYPE 2
1. If I (have)___had_ a typerwriter, I (type)_would type___ it myself
2. if I (know) __knew__the news, I (tell) __would tell__you
3. you (make)__would make__ much progress if you (attend)__attended__ class regularly
4. if i (know) __knew__ his telephone number, I (give) __would give__ it to you
5. if you (arrive) _arrived___ten minutes earlier, you (have)__would have__ a seat
6/ if he (study) __studied__harder, he (pass) _would pass___an exam
7. she (be)__would be __ late if she (not hurry)__didn't hurry__
8. I (tell) ___would tell_him to ring you if I (see) ___saw_him
9. if you (speak)_spoke___ more slowly, he (understand)__would understand__ you
10. what (you do) __would you do__ if you (get)__got__ fat?
III CONDITIONAL TYPE 3
1. if i (know)__had known__that you couldn't eat octopus, I (not buy)__would not have bought__ it
2. I (bring)__would have brought__you some beer if I (know)__had known__ that you were thirsty
3. if you (touch)__had touched__ that electric cable, you (be) __would have been__electrocuted
4. if the story (not/be) __hadn't been__true, the newspaper(not/ print)___wouldn't have printed_ it
5. If I (have) _had had__the same problem you had as a child, I wouldn't have succeded (not/ succed ) v in life as well as you have
6. if i (find)__had found__ out this way earlier, I (save)_would have saved ___ myself a lot of time and trouble over the years

IV/ PUT THE VERBS IN THE CORRECT FORM
1.IF it had not rained, we (go)__would have gone__ camping
2. if he (speak)__had spoken__more slowly, i could have understood him
3.what__would__ you (do)___do_ if you were a monkey
4. if he had listened carefully, he (perform)___would have performed _ well in his examination
5. if I find your book, I (give)_will give___it to you
6. if you came with us, you (have)__would have__a good time
7. if i (not/miss)__hadn't missed__the bus, I could have come early
8. if i took a trip this summer, I (go) __would go __to dalat
9. my dog always barks if he (hear)_hears ___ anything unusual
10. if we had had enough money, we ( buy)__would have bought__ that house
11. if the phone (ring)__rings__ , can you answer it
12. if it rains this evening, i (not/go) __will not go __out

I/ CONDITIONAL- TYPE 1
1/ If we ( send)__send___ an invitation, our friend (come)___will come__ to our party
2/ he __will not understand__ (not/ understand) you if you (whisper)_whisper__
3/ they (not/ survive)__will not survice ___ in the desert if they don't take (not/take) extra water with them
4/ if you (press)__press__CTRL +S, you (save)_will save___ the file
5/ you (cross)_will cross__ the Channel if you (fly)_fly__ from Paris to London
6/ fred (answer) __will answer __ the phone if his wife (have)_has__ a bath
7/ if Claire (wear) __wears_ this dress at the party, our guests (not/stay)__will not stay__ any longer
8. if I (touch)_touch___this snake, my girlfriend (not/scream)__will not scream__
9. she (forget)__will forget__to pick you if you (not/phone)__do not phone__ her
10. i (remember) ___will remeber _you if you (give)_give___me a photo

II/ Conditional TYPE 2
1. If I (have)___had_ a typerwriter, I (type)_would type___ it myself
2. if I (know) __knew__the news, I (tell) __would tell__you
3. you (make)__would make__ much progress if you (attend)__attended__ class regularly
4. if i (know) __knew__ his telephone number, I (give) __would give__ it to you
5. if you (arrive) _arrived___ten minutes earlier, you (have)__would have__ a seat
6/ if he (study) __studied__harder, he (pass) _would pass___an exam
7. she (be)__would be __ late if she (not hurry)__didn't hurry__
8. I (tell) ___would tell_him to ring you if I (see) ___saw_him
9. if you (speak)_spoke___ more slowly, he (understand)__would understand__ you
10. what (you do) __would you do__ if you (get)__got__ fat?

21.If I (be) were you, I (tell) would tell her the truth.

22.Why didn’t you attend the meeting? Oh, I (not know) didn't know indeed. If I (know) knew I (come) will come there.

23.What should we (do) do if they (not come) won't come tomorrow?

24.If you meet him, remember (not tell) not to tell him what I (just say) just said to you.

25.If I (have) have enough time now, I (write) will write to my parents.

26.It’s too bad Helen isn’t here. If she (be) is there, she (know) knows what to do.

27.If I (not eat) won't eat breakfast tomorrow morning, I (get) will get hungry during class.

28.I (change) will change the present economic policy if I (be) am the President of the United States.

29.If the weather (be) was nice today, we (go) would go to the zoo.

30.If I (be) would in your position, I (not do) wouldn't did that.

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

32) Lisa would find the milk if she would look (look) in the fridge.

33) The zookeeper would have punished her with a fine if Trang 28 she feeded(feed) the animals.

34) If you spoke louder, your classmates would understood (understand) you.

35) Dan arrived (arrive) safe if he drove slowly.

36) You won't had (have) no trouble at school if you had done your homework.

37) If you swim (swim) in this lake, you'll shiver from cold.

38) The door will unlock if you press (press) the green button.

39) If Mel asked (ask) her teacher, he'd have answered her questions.

40) I would call (call) the office if I were you.

EX. Chia đt trong ngoặc
1. If you (go) go away, please write to me.
2. If you (be) had been in, I should have given it to you.
3. If you (eat) eat another cake, he will be sick.(có sai chủ ngữ ko vậy?)
4. I (not do) wouldn't do that if I (be) were you.
5. If he (take) takes advice, everything can go well.
6. I'd have come sooner If I knew you were here.
7. he never docs homework. If he (do) his homework. ???
8. If you played for us, we (win) would win.
9.What will you (do) do If she refuses your invitation?
10. If today (be) is Sunday, we(go) will go to the beach.
11. Unless they (pass) passed their examinations, they 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) would have written you a letter
15.If it's raining heavily, we (not go) won't go for a donkcy ride.
16. If he (try) tries hard, he'll pass the examination.
17. I could understand the teacher if she (speak) spoke more sÌowly.
18.If she (not be) hadn't been busy, she would have come to the party.
19. If I (finish) finish the work now, l(go) will go to the football game.
20. If you( see) see Mary today, please (ask) ask her to call me

EX. Chia đt trong ngoặc.
1. If you (go) go away please write to me. (ĐK loại 1)
2. If you (be) had been in, I should have given it to you. (ĐK loại 3)
3. If you (eat) eats another cake, he will be sick. (ĐK loại 1)
4. I (not do) wouldn't do that if I (be) were you. (ĐK loại 2)
5. If he (take) takes advice, everything can go well. (ĐK loại 1)
6. I'd have come sooner If I know you were here.

Câu này sai thì pải!

Sửa: I know \(\rightarrow\) I had known (ĐK loại 3)
7. He never does homework. If he (do) did his homework. (ĐK loại 2)
8. If you played for us, we (win) would win. (ĐK loại 2)
9. What will you (do) do If she refuses your invitation? (ĐK loại 1)
10. If today (be) were Sunday, we (go) would go to the beach. (ĐK loại 2)
11. Unless they (pass) passed their examinations, they would join the army. (ĐK loại 2)
12. You (be) will be ill If you drink that Water. (ĐK loại 1)
13. If Tom (go) went to bed earlier, he would not be so tired. (ĐK loại 2)
14. Had we known your address, We (write) would have written you a letter. (ĐK loại 3)
15. If it's raining heavily, we (not go) won't go for a donkcy ride. (ĐK loại 1)
16. If he (try) tries hard, he'll pass the examination. (ĐK loại 1)
17. I could understand the teacher if she (speak) spoke more slowly. (ĐK loại 2)
18. If she (not be) hadn't been busy, she would have come to the party. (ĐK loại 3)
19. If I (finish) finish the work now, I (go) will go to the football game. (ĐK loại 1)
20. If you( see) see Mary today, please ( ask) ask her to call me. (ĐK loại 1)

Good luck!

1. go
2. Ihad been
3. eats
4. wouldn't do / were
5. takes
6. I had known

7. did
8. would win
9. will / do
10. were / would go
11. passed
12. will be
13. went
14.would have written
15. won't go
16. tries
17. spoke
18. hadn't been
19. finish / will go
20. ask