53. At the sight of the police officer, the thief _____.
　　A) got to his feet
　　B) took to his heels
　　C) rose to his feet
　　D) dragged his heels
　　54. The guide told us that an incident _____ here in 1925.
　　A) took place
　　B) was taking place
　　C) had been taking place
　　D) had taken place
　　55. _____, one must understand mathematics.
　　A) A good scientist
　　B) In order to be a good scientist
　　C) It's a good scientist
　　D) Being a good scientist
　　56. Susan had worked for three years to be a computer analyst but found her progress _____.
　　A) discouraging
　　B) to be discouraged
　　C) discouraged
　　D) to be discouraged
　　57. _____, all the quarrels came to an end.
　　A) The lost money was found
　　B) Was the lost money found
　　C) Because the lost money found
　　D) With the lost money found
　　58. He speaks mandarin with strong Sichuan accent, so he _____ brought up in Sichuan or some places close to Sichuan.
　　A) must have been
　　B) must be
　　C) may have been
　　D) can't have been
　　59. _____ today, he would get there on Sunday.
　　A) Was he leaving
　　B) Were he to leave
　　C) If he leaves
　　D) If he is leaving
　　60. His remark was _____ you might have expected.
　　A) that
　　B) which
　　C) whichever
　　D) what
　　61. My car is in _____ bad condition _____ I can't drive it.
　　A) such, that
　　B) too, to
　　C) so, that
　　D) such a, that
　　62. Few people said full attention to their health conditions _____ they were seriously ill.
　　A) when
　　B) if
　　C) until
　　D) before
　　63. —— What do you think of their _____ play? —— I like it much better than their _____ one.
　　A) last, latest
　　B) later, last
　　C) later, latest
　　D) latest, last
　　64. _____ the 1500's _____ the first European explores the coast of California.
　　A) It was not until, then
　　B) It is until, that
　　C) It is not until, when
　　D) It is not until, that
　　65. He opened his lips as if _____ some reply.
　　A) making
　　B) having made
　　C) to be made
　　D) to make