II. Choose the best answer

A. will be studying

B.will have been studying
8. By the time you receive this letter, I ………………..for Japan.
A. leave B. have left C. will have left D. will leave
9. We had hardly sat down when she ……………plates of food for us.
A. brought B. has brought
C. had brought D. would have brought
10. When she ……………….her mistake, she apologized.
A. realized B. was realizing C. has realized D. had realized

GIÚP MÌNH VỚI MỌI NGƯỜI

A) Underline the correct one

1) I lost – have lost my wallet. I cannot find itanywhere. I looked – have looked at thebedroom but it wasn’t there.

2) I didn’t sell – haven’t sold my car. I decided –have decided to keep it.

3) Didn’t you finish – haven’t you finished yourwork yet?

4) They went – have gone to New York. They mustbe having great time. Last semester I was –have been there and I had – have hadwonderful time.

5) Selma lived – has lived in Qatar for two years.Last month she moved – has moved to Barcelona.

6) I was – have been born in Sydney but I lived –have lived in Canberra.

7) “Did he help – has he helped youwith your Spanish exam?”“No, he didn’t – hasn’t. He is busy.”

8) My father was – has been verybusy recently.

9) We bought – have bought a newhouse. It has got a very large garden.

10) She was – has been a teacherwhen she was – has been 21.

I. Find the OPPOSITES of these adjectives to complete the sentences

1. It was very ............kind.............. of you to help me with my homework.

2. Was Mary...........present............... at the tennis game last Sunday?

3. It's..........impolite............. to talk with your mouth full.

4. Sally isn't very ............................ She prefers to listen to other people.

5. Mark is very ...........non-optimistic.............. He always thinks things will get worse!

6. All the student were very ............friendly.............. towards me on my first day at my new school.

7. The match was between two .........unprofessional.................. teams.

8. He decided not to buy the ...........inauthentic.............. watch and wait until he had more money.

9. After waiting over half an hour for the bus, Ben began to get ..........impatient..............

10. It was very ...............generous........... of you to pay for my coffee.

II. Rewrite the following sentences

1. Daisy types really fast

-> Daisy is a fast typist

2. You have worked very hard.

-> This has been worked very hard.

3. There was almost nobody in the cinema

-> There was hardly anybody in the cinema

4. She speaks English fluently

-> She is a fluent english speaker

5. My brother cycles slowly.

-> My brother is a slow cyclist

III. Choose the best answer

1. Where ......... you at 9:00 last night, Mr.Green?

a. have been b. were c. will be d. are

2. I ................................. the dishwasher on when I heard the shot

a. am turning b. turned c. was turning d. turned

3. Now I ......................... for what I said about you. It wasn't true and I shouldn't have said it

a. do apologize b. apologized c. was apologized d. apologizing

4. Tim was tired. He ......................... hard all day

a. has been studying b. studies c. studied d. had been studying

5. She ................ music all day. Now she feel tired

a. has been playing b. is playing c. played d. plays

6. I was sad when I sold my car. I ............................... it for a very long time

a. am running b. were running c. had been running d. have been running

7. ..................... a car when they were living in London?

a. Have they b. Did they have c. Were they having d. Have they had

8. I think you should have that coat ...................... soon

a. cleaned b. being cleaned c. cleaning d. to clean

9. Ted and Amy ...................... for 24 years

a. have been married b. married c. were married d. has been married

10. When the first child was born, they ............................. married for three years

a. have been married b. had been married c. will been married d. will have been married

Exercise 6 : Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she 2.If you_____to me, you wouldn’t have got so much trouble. A. listened B. would listen C. had listened D. Would have listened 3.If you don’t know how to spell a word, you_____ look it up in the dictionary. A. must B. will C. should D. ought 4.If the sun _____, we _____for a walk. A. shines / will go B. shone / will go C. shone / would go D. had shone / would go 5.The campfire _____ if it _____ last night. A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains 6.But for our parents, we _____ successful in life. A. will never be B. would never be C. wouldn’t have be D. would have never been 7.If I _____ my wallet at home this morning, I _____ money for lunch now. A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had 8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do. A. were / would know B. is / will know C. had been / would have known D. was / would know 9.If we _____ the plans carefully, we would not have had so many serious mistakes. A. study B. had studied C. studied D. were studying 10.I will never talk to you again _____ you apologize me _____ your being rude. A. if / for B. unless / for C. or / of D. whether / or 11._____if you work harder, you will be sacked. A. Whether B. If C. However D. Unless 12.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. 13.If you take the ice out of the fridge, it _____. A. vaporizes B. melts C. heats D. disappears 14.We should do something to protect water from being polluted _____we will have nothing to drink in the future. A. if B. whether C. or D. unless 15.Let’s knock on their door to see _____home. A. if they’re B. unless they’re C. whether they were D. if they were 16.Unless we _____more snow, we can’t go skiing. A. will have B. have C. have had D. had 17.You’ll fail the exam _____ you start revising. A. if B. until C. when D. unless 18.Unless you wash the car, you _____not drive it at the weekend. A. would B. could C. have to D. may 19.If Peter _____his car before the drive, he _____the problem of out of petrol. A. checked / will not get B. had checked / would not have got C. checks / will not have got D. would be checking / will not have got 20.He stepped on the mine, and it exploded. A.If he doesn’t step on the mine, it doesn’t explode. B.If he doesn’t step on the mine, it won’t explode. C.If he didn’t step on the mine, it wouldn’t explode. D.If he hadn’t stepped on the mine, it wouldn’t have exploded. 21. In my experiments, the liquid is cooled to 32ºF. It always freezes. A.If you cool the liquid to 32 degrees, it froze. B.If you cooled the liquid to 32 degrees, it would freeze. C.If you cool the liquid to 32 degrees, it will freeze. D.If you had cooled the liquid to 32 degrees, it would have frozen. 22.It may rain this afternoon. I hope it doesn’t because I don’t want the match to be cancelled. A. If it rains, the match is cancelled. B. If it rains, the match will be cancelled. C. if it rained, the match would be cancelled D. If it had rained, the match would have been cancelled. 23.Unfortunately, I don’t know Philosophy, so I can’t answer your question. A.If I know Philosophy, I can answer your question. B.If I know Philosophy, I will be able to answer your question. C.If I knew Philosophy, I would be able to answer your question. D.If I had known Philosophy, I would have been able to answer your question. 24._____ there are some more ideas, we can end the meeting now. A. If B. As if C. Unless D. In case 25.If he _____with us now, he _____ the beauty of nature of the National Park. A. is / can enjoy B. was / will enjoy C. has been / would enjoy D. were / could enjoy 26.If they had searched more carefully, they...the watch sooner. A. will find B. would find C. found D. would have found 27.If I had got up early, I _____ to have breakfast now. A. have B.I had C. would have D. would have had 28.I cannot buy a new computer _____ I save enough money. A. if B. even if C. unless D. as if 29.Most people you meet will be polite to you _____. A. if you are polite to them B. if you will be polite to them C. unless you are polite to them D. if you were polite to them 30.If you do so, it _____ the matter worse. A. makes only B. would only make C. will only make D. had only made 31.You _____ English fluently unless you practice it every day. A. will speak B. will not speak C. can speak D. did not speak 32.Hurry up _____ you will miss the bus and be late for school. A. if B. and C. or D. as 33.You will get a good seat if you _____ first. A. come B. came C. have come D. will come 34.Sam will not graduate_____. A. if he passed all the tests B. if he does not pass all the tests. C. unless he passes all the tests D. unless he had passed all the tests. 35.If I had time, I would go with you. A.I am free and surely go with you. B.I am too busy to go with you. C. I will go with you because I have time. D. I am free enough to go with you. 36.If Margaret hadn’t been wearing a seat belt, she.... Injured. A. has been B. would has been C. would be D. would have been 37.If I _____ the rain yesterday, I_____ ill. A. had not caught / would have been B. had not caught / would have not been C. have not caught / were not D. have not caught / would have been 38.He looked frightened as if he _____ a ghost. A. sees B. is seeing C. has seen D. had seen 39.What _____if there _____ a serious nuclear accident. A. will happen / was B. happens / were C. would happen / were D. would happen / had been

Lần sau bn vt thì cách ra cho dễ nhìn nhé~~~~

Choose the best answer for each of the following sentences. 1._____have enough apples, she’ll make an apple pie this afternoon. A.Should she B. If she C. Will she D. Unless she

2.If you_____to me, you wouldn’t have got so much trouble.

A. listened B. would listen C. had listened D. Would have listened

3.If you don’t know how to spell a word, you_____ look it up in the dictionary.

A. must B. will C. should D. ought

4.If the sun _____, we _____for a walk.

A. shines / will go B. shone / will go C. shone / would go D. had shone / would go

5.The campfire _____ if it _____ last night.

A. wouldn’t be cancelled / hadn’t rained B. wouldn’t have been cancelled / hadn’t rained C. would have been cancelled / hadn’t rained D. will be cancelled / rains

6.But for our parents, we _____ successful in life.

A. will never be B. would never be C. wouldn’t have be D. would have never been

7.If I _____ my wallet at home this morning, I _____ money for lunch now.

A. leave / will have B. didn’t leave / would have C. hadn’t left / would have D. hadn’t left / would have had

8.It is too bad, Lam isn’t here. If he _____ here, he _____ what to do.

A. were / would know B. is / will know C. had been / would have known D. was / would know

9.If we _____ the plans carefully, we would not have had so many serious mistakes.

A. study B. had studied C. studied D. were studying

10.I will never talk to you again _____ you apologize me _____ your being rude.

A. if / for B. unless / for C. or / of D. whether / or

Choose the best answer to complete the following sentences. 1. Children get present ______ Christmas and ______ their birthday. (at ... at / on ... on / on ... at / at ... on)

2. If you are going to the post office, would you post a letter ______ me? (to / at / on / for)

3. The windows haven’t been cleaned ______ weeks. (ago / since / for / to)

4. We usually go to our home village at least once ______ the summer. (in / on / to / for)

5. He said that John ______ up his job. (has given / have given / had given / had to give)

6. When I saw Susan, she said she was taking her driving test ______. (today / the next day / tomorrow / the tomorrow)

7. My TV is broken. I wish it ______ soon. (would be repaired / is repaired/ was repaired / will be repaired)

8. I have lived with my parents. I wish I ______ an apartment. (will have / had / would / has)

9. Have you ever wished you ______ to ski when you were younger? (will learn / could learn / learn / can learn)

10. Sometimes he wishes he ______ a different career when he graduates. (can choose / choose / will choose / could choose)

11. Matthew said he was meeting a friend at the station later ______. (that day / yesterday / tomorrow / this today)

12. The astronauts have alrea dy been in orbit ______ two days. (since / for / till / to)

13. We have lunch from 12.00 ______ 1.00. Then we start again go on______ 5.30. (to ... at / from ... to / to ... to / to ... till)

14. She said that she ______ to learn to drive. (is going / go / goes /was going)

15. She asked me ______ I liked pop music. (if / that / what / when)

Choose the best answer to complete the following sentences. 1. Children get present ______ Christmas and ______ their birthday. (at ... at / on ... on / on ... at / at ... on)

2. If you are going to the post office, would you post a letter ______ me? (to / at / on / for)

3. The windows haven’t been cleaned ______ weeks. (ago / since / for / to)

4. We usually go to our home village at least once ______ the summer. (in / on / to / for)

5. He said that John ______ up his job. (has given / have given / had given / had to give)

6. When I saw Susan, she said she was taking her driving test ______. (today / the next day / tomorrow / the tomorrow)

7. My TV is broken. I wish it ______ soon. (would be repaired / is repaired/ was repaired / will be repaired)

8. I have lived with my parents. I wish I ______ an apartment. (will have / had / would / has)

9. Have you ever wished you ______ to ski when you were younger? (will learn / could learn / learn / can learn)

10. Sometimes he wishes he ______ a different career when he graduates. (can choose / choose / will choose / could choose)

11. Matthew said he was meeting a friend at the station later ______. (that day / yesterday / tomorrow / this today)

12. The astronauts have alrea dy been in orbit ______ two days. (since / for / till / to)

13. We have lunch from 12.00 ______ 1.00. Then we start again go on______ 5.30. (to ... at / from ... to / to ... to / to ... till)

14. She said that she ______ to learn to drive. (is going / go / goes /was going)

15. She asked me ______ I liked pop music. (if / that / what / when)

1.Children get present ______ Christmas and ______ their birthday. (at ... at / on ... on / on ... at / at ... on)

2. If you are going to the post off ice, would you post a letter ______ me? (to / at / on / for)

3. The windows haven’t been cleaned ______ weeks. (ago / since / for / to)

4. We usually go to our home village at least once ______ the summer. (in / on / to / for)

5. He said that John ______ u p his job.

(has given / have given / had given / had to give)

6. When I saw Susan, she said she was taking her driving test ______. (today / the next day / tomorrow / the tomorrow)

7. My TV is broken. I wish it ______ soon. (would be repaired / is repaired / was repaired / will be repaired)

8. I have lived with my parents. I wish I ______ an apartment. (will have / had / would have / has)

9. Have you ever wished you ______ to ski when you were younger? (will learn / could learn / learn / can learn)

10. Sometimes he wishes he ______ a different career when he graduates. (can choose / choose / will choose / could choose)

11. Matthew said he was meeting a friend at the station later ______. (that day / yesterday / tomorrow / this today)

12. The astronauts have alrea dy been in orbit ______ two days. (since / for / till / to)

13. We have lunch from 12.00 ______ 1.00. Then we start again go on ______ 5.30. (to ... at / from ... to / to ... to / to ... till)

14. She said that she ______ to learn to drive.

(is going / go / goes / was going)

15. She asked me ______ I liked pop music. (if / that / what / when)

16. She said that she was going away for a few days and ______ phone me when she got back. (will / must / would / shall)

17. I’ve lived in this street ______. (in 1998 / for 1 998 / since 1998 / tomorrow)

18. I want two seats for Romeo and Juliet ______ Friday night. (on / in / at / to)

19. Our train arrived in York ______ 6.00. (in / for / on / at)

20. There was an accident at the crossroads ______ midnight last night. (at / fo r / on / in)

21. She said she ______ come to the party on Friday. (won’t / doesn’t / can’t / couldn’t)

22. I’m going to swim ______ Monday with Tom. (at / on / for / of)

23. If my watch is broken, I ______ buy a new one because I always need one. (have to / might / have / may)

24. I have got an awful headache. If I see a chemist’s, I ______ buy some aspirins. (must / might / may / should to)

25. I plan to travel around the world. If I don’t visit my father in Japan this year, I ______ go to the USA. (must / have / may / ought to)

26. If you want to get good grades, you ______ study hard. (must / ought / have to/ have)

27. Let’s wait ______ it stops raining. (until / for / to / since)

28. I have lived in this house ______. (ago six years / in six years / since six years / for six years)

29. Columbus discovered America ______ the 15th century. (in / since / for / on)

30. The course begins ______ 8 am ______ 5 pm. (from ... during / from ... since / from ... to / in ... to)

31. I fell asleep ______ the movie. (during / si nce / from / for)

32. Bill asked where ______ from. (do I come / did I come / I come / I came)

33. He wonders what ______ with my heavy luggage. (I will do / I would do / will I do / I do)

34. He said that he was coming ______. (tomorrow after / yesterday / the next day / following day)

35. You ______ go to university if you want to study medicine. (has to / will / must / ought)

36. If you want to loose weight, you ______ eat too many sweets. (might not / mustn’t / shouldn’t / may not)

37. She wishes she __ ____ a new bicycle. (can have / will have / has / could have)

38. I ______ it ______ rain so much in this city. (wishes ... didn’t / wish ... didn’t / wished ... don’t / wish ... don’t)

39. If you want to get well, you ______ see a doctor. (must / might / may / ou ght)

40. ______ you ever wish you ______ fly? (Did ... could / Do ... could / Do ... can / Did ... can)

41. If he doesn’t come soon, he ______ be late. (has / ought to / ought / might)

42. I wish I ______ on a beautiful sunny beach now. (would be lying / can be lying / can be lied / could be lying)

43. ______ he will change his job if he go to the USA. (Perhaps / Since / Recently / Lately)

44. He ______ someone ______ answer that telephone. It’s been ringing for about five minutes. (wish ... can / wish ... would / wi shes ... can / wishes ... would)

45. If the kitchen is in a mess, you ______ clean it. (will / might / ought to / may)

46. I wish you ______ so fast. It makes me nervous. (weren’t driving / can’t drive / won’t drive / will not drive)

47. The music next door is very loud. I wish they ______. (would turn it down / can turn down it / will turn it down / turn down it

Choose the best answer to complete the following sentences

31. I haven’t seen that coat before. ______ have you had it?
(How / How old / When / How long)
32. It’s nice to see you again. We ______ each other for a long time.
(haven’t seen / hasn’t seen / didn’t see / don’t see)
33. The girls have ______ gone to the cinema. They won’t be back until ten o’clock.
(since / still / yet / just)
34. I haven’t seen my parents ______ last Christmas.
(already / for / before / since)
35. This is the first time I ______ away from home.
(lived / have ever lived / lives / has lived)
36. This program must be new. I’ve ______ seen it before.
(ever / since / for / never)
37. ______ you ______ a holiday this year?
(Have … had / Did … have / Do … have / Has … had)
38. I wish this school ______.
(were bigger / is bigger / are bigger / was bigger)
39. I don’t think Jane will leave this Sunday. I wish she ______.
(won’t / will / wouldn’t / isn’t)
40. My house ______ broken into last night.
(are / is / was / were)
41. The meal ______ cooked when I came.
(was be / was being / is / is being)
42. How ______ this word ______?
(is … pronounced / are … pronounced / were … pronounced / is … pronounce)
43. A lot of money ______ in the robbery.
(were stolen / were steal / was stolen / was stole)
44. Do you ever wish you ______ a doctor some day?
(will become / would become / becoming / was)
45. When ______ the telephone ______?
(were … invented / were … inventing / was … invented / was … inventing)
46. Somebody ______ the car already.
(have cleaned / clean / has cleaned / cleaned)
47. She has ______ to Hue University.
(be accepted / been accepted / is accepted / were accepted)
48. We have ______ how to cook.
(been teach / be taught / been teacher / been taught)
49. My purse ______ yesterday.
(have taken / was taken / have took / is taken)
50. The details should ______ carefully.
(is checked / check / was checked / be checked)

Choose the best answer to complete the following sentences

31. I haven’t seen that coat before. ______ have you had it?
(How / How old / When / How long)
32. It’s nice to see you again. We ______ each other for a long time.
(haven’t seen / hasn’t seen / didn’t see / don’t see)
33. The girls have ______ gone to the cinema. They won’t be back until ten o’clock.
(since / still / yet / just)
34. I haven’t seen my parents ______ last Christmas.
(already / for / before / since)
35. This is the first time I ______ away from home.
(lived / have ever lived / lives / has lived)
36. This program must be new. I’ve ______ seen it before.
(ever / since / for / never)
37. ______ you ______ a holiday this year?
(Have … had / Did … have / Do … have / Has … had)
38. I wish this school ______.
(were bigger / is bigger / are bigger / was bigger)
39. I don’t think Jane will leave this Sunday. I wish she ______.
(won’t / will / wouldn’t / isn’t)
40. My house ______ broken into last night.
(are / is / was / were)
41. The meal ______ cooked when I came.
(was be / was being / is / is being)
42. How ______ this word ______?
(is … pronounced / are … pronounced / were … pronounced / is … pronounce)
43. A lot of money ______ in the robbery.
(were stolen / were steal / was stolen / was stole)
44. Do you ever wish you ______ a doctor some day?
(will become / would become / becoming / was)
45. When ______ the telephone ______?
(were … invented / were … inventing / was … invented / was … inventing)
46. Somebody ______ the car already.
(have cleaned / clean / has cleaned / cleaned)
47. She has ______ to Hue University.
(be accepted / been accepted / is accepted / were accepted)
48. We have ______ how to cook.
(been teach / be taught / been teacher / been taught)
49. My purse ______ yesterday.
(have taken / was taken / have took / is taken)
50. The details should ______ carefully.
(is checked / check / was checked / be checked)

Choose the best answer to complete the following sentences

31. I haven’t seen that coat before. ______ have you had it?
(How / How old / When / How long )
32. It’s nice to see you again. We ______ each other for a long time.
(haven't seen / hasn’t seen / didn’t see / don’t see)
33. The girls have ______ gone to the cinema. They won’t be back until ten o’clock.
(since / still / yet / just )
34. I haven’t seen my parents ______ last Christmas.
(already / for / before / since )
35. This is the first time I ______ away from home.
(lived / have ever lived / lives / has lived)
36. This program must be new. I’ve ______ seen it before.
(ever / since / for / never )
37. ______ you ______ a holiday this year?
(Have … had / Did....have / Do … have / Has … had)
38. I wish this school ______.
(were bigger / is bigger / are bigger / was bigger)
39. I don’t think Jane will leave this Sunday. I wish she ______.
(won’t / will / wouldn't / isn’t)
40. My house ______ broken into last night.
(are / is / was / were)
41. The meal ______ cooked when I came.
(was be / was being / is / is being)
42. How ______ this word ______?
( is.......pronounced / are … pronounced / were … pronounced / is … pronounce)
43. A lot of money ______ in the robbery.
( were stolen / were steal / was stolen / was stole)
44. Do you ever wish you ______ a doctor some day?
(will become / would become / becoming / was)
45. When ______ the telephone ______?
(were … invented / were … inventing / was.....invited / was … inventing)
46. Somebody ______ the car already.
(have cleaned / clean / has cleaned / cleaned)
47. She has ______ to Hue University.
(be accepted / been accêptd / is accepted / were accepted)
48. We have ______ how to cook.
(been teach / be taught / been teacher / been taught)
49. My purse ______ yesterday.
(have taken / was taken / have took / is taken)
50. The details should ______ carefully.
(is checked / check / was checked / be checked)

Choose the best answer to complete the following sentences.

1. Children get present ______ Christmas and ______ their birthday. (at ... at / on ... on / on ... at / at ... on)

2. If you are going to the post office, would you post a letter ______ me? (to / at / on / for)

3. The windows haven’t been cleaned ______ weeks. (ago / since / for / to)

4. We usually go to our home village at least once ______ the summer. (in / on / to / for)

5. He said that John ______ up his job. (has given / have given / had given / had to give)

6. When I saw Susan, she said she was taking her driving test ______. (today / the next day / tomorrow / the tomorrow)

7. My TV is broken. I wish it ______ soon. (would be repaired / is repaired/ was repaired / will be repaired)

8. I have lived with my parents. I wish I ______ an apartment. (will have / had / would / has)

9. Have you ever wished you ______ to ski when you were younger? (will learn / could learn / learn / can learn)

10. Sometimes he wishes he ______ a different career when he graduates. (can choose / choose / will choose / could choose)

11. Matthew said he was meeting a friend at the station later ______. (that day / yesterday / tomorrow / this today)

12. The astronauts have already been in orbit ______ two days. (since / for / till / to)

13. We have lunch from 12.00 ______ 1.00. Then we start again go on______ 5.30. (to ... at / from ... to / to ... to / to ... till)

14. She said that she ______ to learn to drive. (is going / go / goes /was going)

15. She asked me ______ I liked pop music. (if / that / what / when)

16. She said that she was going away for a few days and ______ phone me when she got back. (will / must / would / shall)

17. I’ve lived in this street ______. (in 1998 / for 1998 / since 1998 / tomorrow)

18. I want two seats for Romeo and Juliet ______ Friday night. (on / in / at / to)

19. Our train arrived in York ______ 6.00. (in / for / on / at)

20. There was an accident at the crossroads ______ midnight last night. (at / for / on / in)

21. She said she ______ come to the party on Friday. (won’t / doesn’t / can’t / couldn’t)

22. I’m going to swim ______ Monday with Tom. (at / on / for / of)

23. If my watch is broken, I ______ buy a new one because I always need one. (have to/ might / have / may)

24. I have got an awful headache. If I see a chemist’s, I ______ buy someaspirins. (must / might / may / should to)

25. I plan to travel around the world. If I don’t visit my father in Japan this year, I ______ go to the USA. (must / have / may / ought to)

26. If you want to get good grades, you ______ study hard. (must / ought / have / have)

27. Let’s wait ______ it stops raining. (until / for / to / since)

28. I have lived in this house ______. (ago six years / in six years / since six years / for six years)

29. Columbus discovered America ______ the 15th century. (in / since / for / on)

30. The course begins ______ 8 am ______ 5 pm. (from ... during / from ... since / from ... to / in ... to)

21. The television isn't working. It __ during the move
A. should have been damaged          B. needn't be demaged
C. must have been damaged        D. ought not be damaged
22. She spoke in a low voice, but I __ what she was saying
A. can understand     B. could understand     
C. were able understand     D.could have understood
23. Robert arrived without his books. He __ it
A.  could have lost it     B. would have lost     
C. should have lost     D. will have lost
24. "where do you think Roony is today?". 
      " i have no idea. He __ late"
A. should have left     B. would sleep     
C. would have sleep     D. may have sleep 
25. The photos are black. The X-Ray at the airport __ them
A. Should have damaged     B. Would have have damage->damaged
C. Would damage     D. Must have damage->damaged(tham khao c25)
26. The children __ "thank you" to you when you gave them their gifts
A. will have said     B. should have said(tham khao c26)     C. must say     D. should say