51. Return the book immediately to the library as soon as you ____with it.

A. finish B. are finished

C. have finished D. are finishing

52. John isn't the same man ____ before.

A. what he was B. that he was

C. who he was D. as he was

53. ____ the book again, she discovered that she had missed a lot in her first reading.

A. While reading B. When read

C. As reading D. In reading

54. I decided to buy a ear because we had sold____ we had in England before leaving.

A. that B. the other C. which D. the one

55. The moon is a world that is ***pletely still and____ utter silence prevails.

A. that B. where C. which D. whenever

56. The top of the hill was____ . There were no trees.

A. empty B. vague C. bare D. dull

57. So far I haven't ____ any instructions as to what to do next.

A. received B. accepted C. achieved D. recovered

58. Leave me alone; mind your own ____.

A. events B. affairs C. things D. matters

59. I ____asleep in the corner, for I remember nothing of what happened during the night

A. might fall B. must fall

C. must have fallen D. can have fallen

60. Your experiment reports must be checked with care before____.

A. handed them in B. them handing in

C. being handed in D. handing them in

答案：

51-55 BDADB 56-60 CABCC