41. I think I will do it myself__________asking him for help.
　　A. rather than
　　B. other than
　　C. instead of
　　D. in place of
　　42. Today books are__________ to everyone because they are no longer expensive.
　　A. available
　　B. preferable
　　C. reliable
　　D. actual
　　43. The forest fire caused by the volcano is difficult to be__________.
　　A. put off
　　B. put away
　　C. put out
　　D. put up
　　44. It was not __________midnight that they discovered the children were not in their beds.
　　A. before
　　B. at
　　C. after
　　D. until
　　45. The girl is not happy at the new school. She has__________ friends there.
　　A. few
　　B. a few
　　C. little
　　D. quite a few
　　46. Robots have already __________human tasks in the industrial field.
　　A. taken on
　　B. taken out
　　C. taken up
　　D. taken over
　　47. He took the medicine, but it didn' t have any__________.
　　A. answer
　　B. cause
　　C. effect
　　D. work
　　48. It is__________ that over one million Americans now live below the poverty line.
　　A. judged
　　B. estimated
　　C. calculated
　　D. considered
　　49. He left __________an important detail in his account.
　　A. off
　　B. over
　　C. behind
　　D. out
　　50. When there are small children around, it is necessary to put bottles of pills out of__________.
　　A. hand
　　B. hold
　　C. place
　　D. reach

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