B. variety
C. modification D. difference
41. Violent programs on television may have a bad ______ on children. A. affection B. influence C. pressure D. control
42. Like human beings, elephants are ________ animals. A. group B. collective C. social D. society
43. The detective story, as created by Poe, is something as specialized and ________ as a chess problem. A. intelligent B. optional C. intellectual D. violent
44. If you ______ all your strength you can do it much better. A. do B. use C. spend D. exert
45. The company has a ______ organization structure. A. complex B. confused C. sophisticated D. difficult
46. Science has a strong _____ on our everyday life. A. impression B. shock C. impact D. break
47. We must consider each _______ of this plan before coming to a decision. A. aspect B. inspect C. perspective D. prospect
48. We have to work even harder though we feel quite ______ our success. A. nervous about B. secure of C. worried about D. competent for
49. Once out of the earth's gravity, the astronaut is ________ by the problem of weightlessness. A. effected B. affected C. related D. connected
50. Your smoking can be harmful _______ the health of your children. A. with B. for C. to D. at
51. The police had difficulty in _______ the crowd from rushing onto the pitch. A. restraining B. restricting C. limiting D. confining
52. He is ______ about his chances of winning a gold medal in the next Olympics. A. obvious B. outstanding C. optimistic D. option
53. In primitive societies, sheep and cows were used as _________ to ghosts and gods. A. sacrifice B. symbols C. gifts D. grants
54. Life depends on the _________ between the heat received from the sun and the heat lost to cooler surroundings. A. relationship B. contrast C. exchange D. balance
55. The mountains were ________ in the still water of the lake. A. echoed B. reflected C. absorbed D. taken
56. I feel optimistic about our ability to solve the problems which _______ our civilization. A. encounter B. rescue C. confront D. originate
57. Our ________ for certain colours are partly due to psychological factors. A. dependence B. references
C. patience D. preferences
58. I am easily hurt because my feelings are very _________. A. sensible B. sensitive C. sensational D. sentimental
59. Every time the world war broke out, this country remained ______. A. natural B. intellectual C. central D. neutral
60. We must find out the ___________ cause of the accident. A. mystical B. mysterious C. mystified D. mystery