51. mysteries / seem / beyond / understanding.

52. Peter / regret / not attend / lecture / last week.

53. time / train / leave / passengers / board.

54. we / upset / because of / failure.

55. policeman / talk / man / car / damage / accident.

56. I / spare time / read.

57. despite / enthusiasm / he / not succeed.

58. more / we / travel / learn.

59. mathematics / play / part / lives.

60. if / Peter / money / lend / you.

41. "I'm very busy. I'll ring you tomorrow,” he said.

He told me_________________________________________________________

42. John could do his homework because his sister helped him.

Without___________________________________________________________

43. I. usually drive to work, but today I go by bus.

Instead____________________________________________________________

44. Mary will be happy to give you a hand.

Mary does not mind_________________________________________________

45. Their knowledge of English is limited.

They______________________________________________________________

46. He could not sleep because the traffic was noisy.

The noise__________________________________________________________

47. More people live in New York than in Washington.

Not so____________________________________________________________

48. The police started investigating the case a week ago.

The police have_____________________________________________________

49. We never intended to travel abroad.

We never had_______________________________________________________

50. Immediately after his arrival, things went wrong.

No sooner_________________________________________________________

The search (26) _______ alternative sources of energy has led in various directions. Many communi- ties are burning garbage (27) _______other biological waste products to produce electricity. Converting waste products to gases or oil (28) _______ also an efficient way to dispose of waste.

Experimental work is being done to derive synthetic fuels (29) _______ coal, oil, shale and coal tars. However that process (30) _______ proved to be expensive. Other experiments that are underway to harness power with giant windmills are also (31) _______ tested.

Some experts expect utility companies to receive hydroelectric power (32) _______ from streams and rivers. Fifty years (33) _______ hydroelectric power provided one third of the electricity used in the United States, but today it supplies only four percent. The oceans are another potential sources of energy. Scientists are studying ways to convert the energy of ocean currents, tides and waves (34) _______ electricity. Experiments are also underway to make use (35) _______ temperature differences in ocean water to produce energy.

6. By the end of next month, we _______ our English course.

a. have completed b. will be completed

c. will have completed d. completed

7. If you had worked harder, you _______.

a. will not be sacked b. are not sacked

c. will not have been sacked d. would not have been sacked

8. It was _______ we could not go out.

a. such cold that b. so cold that c. very so cold d. too cold that

9. Nobody can prevent us from _______ good things.

a. do b. doing c. did d. done

10. Mr. Pike _______ English at our school for 20 years before he retired last year.

a. is teaching b. was teaching c. has been teaching d. had been teaching

11. You should be responsible _______ what you have done.

a. of b. for c. with d. on

12. No longer _______ clean the floor. I have just bought a vacuum cleaner.

a. do I have to b. I do have to c. I have to d. have I to do

13. People do exercise _______.

a. keeping fit b. making fit c. to keep fit d. to make them fix

14. I never forget _______ I went to school.

a. the time first which b. what the first time c. that the time d. the first time when

15. Mary enjoys _______ crossword puzzles when she has free time.

a. making b. doing c. taking d. getting

III.

16. If you want to get _______ in life, you should work harder. (achieve)

17. The roads in our town are being _______. (wide)

18. Thank you for your clear _______. I can understand the lesson thoroughly. (explain)

19. The boring film made Tom fall _______. (sleep)

20. _______ the boy got lost on the way home. (Luck)

21. The _______ of the traffic prevented him from sleeping last night. (noisy)

22, The _______ of nature is at risk. (beautify)

23. Both the US and Russia continue their _______ of the moon. (explore)

24. Vietnam is an _______ country. (agriculture)

25. _______ is one of the biggest businesses in the world. (Advertise)

1. I ............Louisiana state University.

A. am attending

B. attend

C. was attending

D. attended

2. He has been selling motorcycles.................

A. ten years ago

B. since ten years

C. for ten years ago

D. for ten years

3. Columbus............America more then 400 years ago.

A. discovered

B. has discovered

C. had discovered

D. he has gone

4. He fell down when he ............towards the church.

A. run

B. runs

C. was running

D. had run

5. We ............there when our father died.

A. still lived

B. lived still

C. was still living

D. were still living

6. They ............pingpong when their father comes back home.

A. will play

B. will be playing

C. play

D. would play

7. By Christmas, I.............for you for 6 months.

A. Shall have been working

B. shall work

C. have been working

D. shall be working

8. I............in the room now.

A. am being

B. was being

C. have been being

D. am

9. I.............to New york three times this year.

A. have been

B. was

C. were

D. had been

10. I will come and see you before I.............for America.

A. leave

B. will leave

C. have left

D. shall leave

11. The little girl asked wha.............to her friend.

A. has happened

B. happened

C. had happened

D. would have been happened

12. John ............a book when I saw him.

A. is reading

B. read

C. was reading

D. reading

13. He said he............return later.

A. will

B. would

C. can

D. would be

14. Jack.............the door.

A. has just opened

B. open

C. will have opened

D. opening

15. I have been waiting for you…............

A. since early morning

B. since 9 a.m

C. for two hours

D. all are correct

16. My sister............for you since yesterday.

A. is looking

B. was looking

C. has been looking

D. looked

17. Jack............the door.

A. has just painted

B. paint

C. will have painted

D. painting

18. The train............half an hour.

A. has been leaving

B. left

C. has lelt

D. had lelt

19. We............Doris since last Sunday.

A. don’t see

B. haven’t seen

C. didn’t see

D. hadn’t seen

20. When I last saw him, he............in London.

A. has lived

B. is living

C. was living

D. has been living

21. After I............…lunch, I looked for my bag.

A. had

B. had had

C. have has

D. have had

22. By the end of next year, Geoge............…English for 2 years.

A. will have learned

B. will learn

C. has learned

D. would learn

23. The man got out the car ,............…round to the back and opened the boot.

A. walking

B. walked

C. walks

D. walk

24. For several years his ambition............…to be a pilot.

A. is

B. has been

C. was

D. had been

25. Henry............into the restaurant when the writer was having dinner.

A. was going

B. went

C. has gone

D. did go

26. He will take the dog out for a walk as soon as he ............dinner.

A. finish

B. finishes

C. will finish

D. shall have finished

27. Before you asked, the letter…............

A. was written

B. had been written

C. had written

D. has been written

28. Ask her to come and see me when she............her work.

A. finish

B. has finished

C. finished

D. finishing

29. Oil ............if you pour it on water.

A. floated

B. floats

C. will be floated

D. float

30. The dancing club.............north of the city.

A. lays B. lies

C. located

D. lain

31. Almost everyone............for home by the time we arrived.

A. leave

B. left

C. leaves

D. had left

32. By the age of 25, he ............two famous novels.

A. wrote

B. writes

C. has written

D. had written

33. While her husband was in the army, Janet ............ to him twice a week.

A. was writing

B. wrote

C. was written

D. had written

1. Bad driving ( cause) …………… many accidents.

2. Mai and Lan ( see) ………………….. a movie tonight.

3. Mozart ( wite) …………….. more than 600 pieces of music.

4. "How you ( learn) ………………….. to drive?" – " My father ( teach) …………….. me."

5. We usually ( go ) …. to the library three times a week, but last week we ( go) …….twice

6. Alexander ( introduce) ………….. the telephone in 1876.

7. Yesterday I ( be) ………busy, so I (not have) ………… time to phone you.

8. Would you like (come) …………. To dinner tomrrow?