A. The first time B. For the first time
C. At a time D. At one time
29. —The thread broke and my kite flew away.
—I had told you it would break _____ it was the weakest.
A. when B. where C. unless D. however
30. They were surprised that a child should work out the problem _____ they themselves couldn’t.
A. once B. then C. while D. if
31. He must have walked this way, _____ here are some of his footprints.
A. for B. now that
C. because D. since
32. The foreign settlers began killing the native citizens _____ they set foot on the island.
A. at the moment B. for the moment
C. in the moment D. the moment
33. _____ twenty years old _____ his high school education.
A. Not until he was, he did finish
B. Not until was he; he finished
C. Till not was he; he finished
D. Not until he was; did he finish
34. —Can you describe _____ it happened?
—Yes, I was riding on my bike _____ a car knocked me down from behind.
A. when; as B. how; as
C. how; when D. how; while
35. I’m going to Shanghai next month. I’ll visit my classmate _____ I get there.
A. if B. when C. while D. whenever
36. I locked my room and was about to leave _____ it began to rain.
A. when B. after C. while D. then
37. He had hardly reached the airport _____ he started for his destination.
A. where B. after C. since D. when
38. _____ he said he was our good friend, _____ he wouldn’t help us wholeheartedly.
A. Since; and B. As; because
C. Though; yet D. Though; but
39. According to the conditions of my scholarship,
having finished my degree, _____.
A. my education will be accepted by the university
B. employment will be offered to me by the university
C. the university will employ me
D. I’ll be employed by the university
40. The visitor asked the guide to take a picture for him _____ stands the famous tower.
A. that B. where C. which D. who
41. While previewing his lessons, the little boy will make a question mark _____ there is a question.
A. when B. where C. because D. which
42. _____ we get good weather, it will be a successful holiday.
A. Provided B. Even if
C. Although D. Unless
43. _____ I know, that guy knows nothing about medicine. He is no doctor at all.
A. As well as B. As far as
C. As soon as D. As long as
44. _____ as skillful as the old workers, I would be able to make more contributions to this company.
A. Were I B. I were
C. In case I am D. So that I am
45. I won’t buy this coat _____ you offer me a 10 percent discount.
A. until B. unless C. when D. before
46. _____ he drives his car here, we won’t be able to go there for the meeting.
A. If B. Since C. Except D. Even if
47. _____ people’s life is getting better and better, there is a growing demand for petrol all over the world.
A. Though B. When C. While D. As
48. Although he is considered as a great artist, _____.
A. his paintings don’t sell well
B. but his paintings don’t sell well
C. however his paintings don’t sell well
D. and his paintings don’t sell well
49. —Haven’t the curtains been drawn yet?
—No, _____ the lamps outside have already been lighted.
A. though B. since C. when D. after
50. _____ into a warm room, a piece of ice will soon turn into water.
A. If taken B. When taking
C. As taken D. After taking
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