if i ......., i would express my feelings

a .were asked

b .would ask

c. had been asked

d, asked

2 i am very thin . i think, if i .............. smoking , i might get fat

a stop b.had stopped c will stop d stopped

3 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

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

if Colmbus .......money from Qeen 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

if anybody ............a questions, please ask me after class

a, had b, have c, c has d, will have

if i ......., i would express my feelings

a .were asked

b .would ask

c. had been asked

d, asked

2 i am very thin . i think, if i .............. smoking , i might get fat

a. stop b.had stopped c will stop d stopped

3 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

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

if Colmbus .......money from Qeen 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

if anybody ............a questions, please ask me after class

a, had b, have c, c has d, will have

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

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. hasn't
B. hasn'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 / hasn't lied
B. would be / didn't lie
C. will be / don't lie
D. would be / hasn't lied
7. John would be taking a great risk if he _____ his money in that business.
A. would invest
B. Conc
C. had involved
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 hasn'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
10 câu còn lại bạn tự luyện nhé

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

Câu 12: I think you should ………. up late at night.
A. stayed B. Staying C. stay D. to stay
Câu 15: If I ……….. again, I think that I would have succeeded.
A. had tried B. tried C. try D. trying
Câu 24: If you feel bored, you should …………. away for a few days.
A. went B. gone C. to go D. go
Câu 28: Water……….down hill if there weren’t gravity.
A. won’t run B. didn’t run C. wouldn’t have run D. wouldn’t run
Câu 29: If I ................ you, I wouldn’t buy that coat.
A. would be B. was C. were D. Am
Câu 30: What would happen if I…………. that red button.
A. had pressed B. press C. was pressed D. pressed
Câu 32: He will get fat if he ……… smoking.
A. stops B. had stopped C. did stop D. stopped
7. Sally……….the phone if she were in the room now.
A. will answer B. shall answer C. would answer D. answered
10. I wonder where Mai is. She should ________ here by now.
A. be B. is C. to be D. being
11. Henry ________ a rich man if he had been more careful in the past.
A. would have been B. will be C. would be D. was
13. If I ________ you, I wouldn’t buy that coat.
A. am B. was C. were D. would be
5. I’m not a doctor. If I _______a doctor, I ____________help the sick.
a. am/ will b. was/ will c. were/ would d. were/ will
6. Unless you ______quiet, I would scream.
a. didn’t keep b. kept c. will keep d. would keep
11. What would Tom do if he ___________ the truth?
a. would know b. has know c. knows d. knew
12. If he ________to the party yesterday, he would have met his old friend.
a. go b. went c. gone d. had gone
19. Unfortunately, I didn't have address. If I _________ it, I would have sent you a postcard.
A. had B. have had C. had had D. have
31. If I could speak Spanish, I ___________ next year studying in London.
A. would spend B. will spend C. had spent D. would have spent
40. If I hadn’t drunk so much coffee, __________ better.
A. I slept B. I’ll sleep C. I’d have slept D. I sleep

Câu 12: I think you should ………. up late at night.
A. stayed B. Staying C. stay D. to stay
Câu 15: If I ……….. again, I think that I would have succeeded.
A. had tried B. tried C. try D. trying
Câu 24: If you feel bored, you should …………. away for a few days.
A. went B. gone C. to go D. go

=> GO
Câu 28: Water……….down hill if there weren’t gravity.
A. won’t run B. didn’t run C. wouldn’t have run D. wouldn’t run
Câu 29: If I ................ you, I wouldn’t buy that coat.
A. would be B. was C. were D. Am
Câu 30: What would happen if I…………. that red button.
A. had pressed B. press C. was pressed D. pressed
Câu 32: He will get fat if he ……… smoking.
A. stops B. had stopped C. did stop D. stopped
7. Sally……….the phone if she were in the room now.
A. will answer B. shall answer C. would answer D. answered

=> c, would answer

10. I wonder where Mai is. She should ________ here by now.
A. be B. is C. to be D. being

=< A, BE

11. Henry ________ a rich man if he had been more careful in the past.
A. would have been B. will be C. would be D. was

=> A, WOULD HAVE BEEN
13. If I ________ you, I wouldn’t buy that coat.
A. am B. was C. were D. would be

=> WERE
5. I’m not a doctor. If I _______a doctor, I ____________help the sick.
a. am/ will b. was/ will c. were/ would d. were/ will

A. AM / WILL
6. Unless you ______quiet, I would scream.
a. didn’t keep b. kept c. will keep d. would keep

A, DIDN'T KEEP
11. What would Tom do if he ___________ the truth?
a. would know b. has know c. knows d. knew

=> KNEW
12. If he ________to the party yesterday, he would have met his old friend.
a. go b. went c. gone d. had gone

=> HAD GONE

19. Unfortunately, I didn't have address. If I _________ it, I would have sent you a postcard.
A. had B. have had C. had had D. have

=> HAD
31. If I could speak Spanish, I ___________ next year studying in London.
A. would spend B. will spend C. had spent

=> WOULD SPENT

D. would have spent
40. If I hadn’t drunk so much coffee, __________ better.
A. I slept B. I’ll sleep C. I’d have slept D. I sleep

=> I 'D HAVE SLEPT

Câu 12: I think you should ………. up late at night.
A. stayed B. Staying C. stay D. to stay
Câu 15: If I ……….. again, I think that I would have succeeded.
A. had tried B. tried C. try D. trying
Câu 24: If you feel bored, you should …………. away for a few days.
A. went B. gone C. to go D. go
Câu 28: Water……….down hill if there weren’t gravity.
A. won’t run B. didn’t run C. wouldn’t have run D. wouldn’t run
Câu 29: If I ................ you, I wouldn’t buy that coat.
A. would be B. was C. were D. Am
Câu 30: What would happen if I…………. that red button.
A. had pressed B. press C. was pressed D. pressed
Câu 32: He will get fat if he ……… smoking.
A. stops B. had stopped C. did stop D. stopped
7. Sally……….the phone if she were in the room now.
A. will answer B. shall answer C. would answer D. answered
10. I wonder where Mai is. She should ________ here by now.
A. be B. is C. to be D. being
11. Henry ________ a rich man if he had been more careful in the past.
A. would have been B. will be C. would be D. was
13. If I ________ you, I wouldn’t buy that coat.
A. am B. was C. were D. would be
5. I’m not a doctor. If I _______a doctor, I ____________help the sick.
a. am/ will b. was/ will c. were/ would d. were/ will
6. Unless you ______quiet, I would scream.
a. didn’t keep b. kept c. will keep d. would keep
11. What would Tom do if he ___________ the truth?
a. would know b. has know c. knows d. knew
12. If he ________to the party yesterday, he would have met his old friend.
a. go b. went c. gone d. had gone
19. Unfortunately, I didn't have address. If I _________ it, I would have sent you a postcard.
A. had B. have had C. had had D. have
31. If I could speak Spanish, I ___________ next year studying in London.
A. would spend B. will spend C. had spent D. would have spent
40. If I hadn’t drunk so much coffee, __________ better.
A. I slept B. I’ll sleep C. I’d have slept D. I sleep

1 if i ............ the bus this afternoon , i will get a taxi instead

a miss b will miss c missed d had missed

2 we will have to go without john if he .............. soon

a will not arrive b will arrive c arrives d does not arrive

3 if i make some coffee , ................ the cake ?

a do you cut b will you cut c are you cutting d do not you cut

4 if you ............... your homework , i ...................... you watch tv

a will not do / let b will press/comes c press / can come d have pressed / will comes

5 ............... you , i would think twice about that decision . it could be a bad move

a if i am b should i be c were i d if i had been

6 would you like some cake ? - no thanks . if i ................ cake , i ...........fat .

a ate/will get b ate / would get c would eat / could get d am eating/will get

8 pam broke her arm in the accident . it ................. much worse if she had not been wearing her seat belt

a will be b would have been c was d were

9 my boss made me work overtime again . - if i ............ you , i ................ my job

a were / would have quit b am/ will quit c was/must quit d were / would quit

10 john went to the hospital alone - did he ? if he ............. me,i ... with him

a told/ would go b told / might have gone c had told / could go d had told/would have gone

1. comes
2. find
3. lived
4. arrived
5. will phone
6. would give
7. would
8. can go
9. will have

10. stop

11. were
12. had spoken

13. had listened – would have performed
14. comes – will have

Gạch chân dưới đáp án đúng:
1. If she (come / comes / came / had come) late again, she'll lose her job.
2. I'll let you know if I (find / finds / found / had found) out what's happening.
3. If we (live / lived / would live / had lived) in a town, life would be better.
4. I'm sure he wouldn't mind if we (arrive / arriving / arrived / had arrived) early.
5. We (will phone / would phone / phoned / had phoned) you if we have time.
6. If I won the lottery, I (gave / had given / will give / would give) you half the money.
7. It (will / would / can / may) be a pity if she married Fred.
8. If I'm free on Saturday, I (to go / could go / went / can go) to the mountains.
9. She (will has / had / will have / have) a nervous breakdown if she goes on like this.
10. I know I'll feel better if I (will stop / stopped / stop / had stopped) smoking.
11. If I (am / were / will be / had been) you, I would help him.
12. I could have understood him if he (speaks / spoke / had spoken / would speak) more slowly.
13. He didn't listen to the teacher. If he (listens / listened / has listened / had listened) carefully, he (will performed / would perform / would have performed / had performed) well in the examination.
14. He's waiting for his mother to come back from Chicago. If his mother (come / comes / will come / came) home, he?? đề thiếu

Gạch chân dưới đáp án đúng:
1. If she (come / comes / came / had come) late again, she'll lose her job.
2. I'll let you know if I (find / finds / found / had found) out what's happening.
3. If we (live / lived / would live / had lived) in a town, life would be better.
4. I'm sure he wouldn't mind if we (arrive / arriving / arrived / had arrived) early.
5. We (will phone / would phone / phoned / had phoned) you if we have time.
6. If I won the lottery, I (gave / had given / will give / would give) you half the money.
7. It (will / would / can / may) be a pity if she married Fred.
8. If I'm free on Saturday, I (to go / could go / went / can go) to the mountains.
9. She (will has / had / will have / have) a nervous breakdown if she goes on like this.
10. I know I'll feel better if I (will stop / stopped / stop / had stopped) smoking.
11. If I (am / were / will be / had been) you, I would help him.
12. I could have understood him if he (speaks / spoke / had spoken / would speak) more slowly.
13. He didn't listen to the teacher. If he (listens / listened / has listened / had listened) carefully, he (will performed / would perform / would have performed / had performed) well in the examination.
14. He's waiting for his mother to come back from Chicago. If his mother (come / comes / will come / came) home, he

11. If I ___________ her phone number, I ___________ her

A. had known/ could have phoned

B. knew/ would have phoned

C. know/ can phone

D. knew/ could phone

12. If we______ to London , when we ___ in England, you would have never seen Big ben

A. hadn't gone/ were

B. went/were

C. went/are

D. go/are

13. if you press that button what________

A. would happen

B. would have happend

C. will happen

D. happen

14. She says if she______________ that the traffics lights were red she____________

A.had realized/ would stop

B. realized/ could have stopped

C. has realized/ stopped

D. had realized/ would have stopped

1 If i....................a lot of money now ,i.................anew 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 take ken

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 ..................terrible upset if i lost this ring

a will be b would be c were d had been

10 if someone....................in here witha gun, i would be very frightened

a would walk b would be c were d had been

11 what would happenif you ...................to work tomorrow ?

a don't go b didn'tgo c won't go wouldn 't go

12 we"II 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 they'd be hurt if i ......................

a don't go b didn't go c hadn't gone d wouldn't go

17 if we took 6:30 train, we.....................too early.

a would have arrvied b arrived c will arrvie d would arrive

18 you won't pass the examination........................you study more

a as long as b unless c if d whether

19 if i were to leave my country,i........................disappointed.

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

20 if i were in your place,i ..............a trip to england

a will make b had made c made d would make