请英语高手帮我分析题目。。。。。

Question

2. 41. The meeting lasted till late __D___.
A. into night B. at night C. into the night D. at the night
42. I'm badly in need ___C___ your help.
A. of B. for C. from D. at
43. It's the first turning ___C___ the left after the traffic lights.
A. on B. in C. by D. for
45. Man's life is often compared ___A___ a candle.
A. with B. as C. to D. in
46. I'm afraid you've mistaken me __B____ my twin sister.
A. for B. with C. to D. by
47. I agree with him ___D__, but not entirely.
A. until a certain point B. to some point C. to some extent D. until a certain extent
49. I ____C__ all day and I haven't a penny left.
A. had shopped B. am shopping C. have shopped D. have been shopping
50. A relative of yours ___D___ this evening.
A. will be coming to see you B. will have been coming
C. would come to see you D. won't have seen you
3. He ___C___ English for six years by the time he takes his examination.
A. was studying B. would have been studying
C. had been studying D. will have been studying
4. --- " ____C__ he open the door?"
--- "Yes, please."
A. Shall B. Will C. Can D. Would

Answer 1

41. C. late into the night 深夜
42. A. of 固定短语be in need of 需要
43.A. on the left 在左边
45. Man's life is often compared ___C___ a candle.
C,to be compared to 被比作/比拟为
46. A. mistake sb for 把某人误认为是
47. to some extent 在某种程度上
49. C. have shopped 正确
50. A. will be coming to see you 将来进行时态
3. B. would have been studying将来完成进行时
【 by the time he takes his examination.信息词】
4. A. Shal l用于一三人称
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