53. To prevent flooding in winter the water flowing from the dam is constantly ____ by a computer.
A. Managed
B. graded
C. monitored
D. conducted
正确答案是

54. ____ I know the money is safe. I shall not worry about it.
A. Even though
B. Unless
C. As long as
D. However
正确答案是

55. He couldn't lie convincingly enough to take a child ____ .
A. away
B. down
C. in
D. up
正确答案是

56. The parents were worried about Dorothy because no one was aware ____ she had gone.
A. where that
B. of where
C. of the place where
D. the place
正确答案是

57. It was not until she returned home ____ she realized she had almost wasted ten of her valuable hours.
A. and
B. when
C. then
D. that
正确答案是

58. There has not been a great response to the sale, ____?
A. does it
B. has it
C. does there
D. has there
正确答案是

59. Anthropology is a science ____ anthropologists use a rigorous set of methods and techniques to document observations that can be checked by others.
A. in that
B. that in
C. that
D. in
正确答案是

60. The activities of the international marketing researcher are frequently much broader than ____.
A. the domestic marketer has
B. those of the domestic marketer
C. the domestic marketer does
D. that which has the domestic marketer
正确答案是

61. I'm surprised at there ____ an index.
A. not to be
B. to be not
C. not being
D. being not
正确答案是

62. I ____ this soup. I ____ pepper in it.
A. am tasting... am tasting
B. am tasting... taste
C. taste... am tasting
D. taste... have tasted
正确答案是

63. ____, explorers could never have found the cave.
A. But for the fissure had been spotted
B. If not the fissure had been spotted
C. Had the fissure not been spotted
D. Had not the fissure been spotted
正确答案是

64. John often sits in a small bar, drinking and smoking considerably more ____.
A. than that he is healthy
B. than good for his health
C. than his health could
D. than is good for his health
正确答案是

65. This ____ girl is Mary's cousin.
A. pretty little Swedish
B. Swedish little pretty
C. Swedish pretty little
D. little pretty Swedish
正确答案是