2012年12月大学英语六级语法专项练习(13)

41. Tom ________ better than to ask Dick for help.
A) shall know      B) shouldn’t know     C) has known    D) should have known（D）转自:考试网 - []
42. The magician picked several persons ________ from the audience and asked them to help him with the performance.
A) by accident      B) at random      C) on occasion      D) on average（B）
43. Water enters into a great variety of chemical reactions, ________ have been mentioned in previous pages.
A) a few of it      B) a few of that      C) a few of them      D) a few of which（D）
44. They’ll have you ________ if you don’t pay your taxes.
A) to be arrested      B) arrest      C) arrested      D) being arrested（C）
45. There was a knock at the door. It was the second time someone ________ me that evening.
A) had interrupted      B) would have interrupted
C) to have interrupted      D) to interrupted（A）

答案：41. D 42. B 43. D 44. C 45. A