81. You should be able to__________ right from wrong.
　　A. perceive
　　B. distinguish
　　C. sight
　　D. observe
　　82. Any student who __________his homework is unlikely to pass the examination.
　　A. reduces
　　B. offends
　　C. practices
　　D. neglects
　　83. I promised to look__________ the matter as soon as I got there.
　　A. for
　　B. in
　　C. into
　　D. after
　　84. Your sister has made an__________ for you to see the dentist at 3 this afternoon.
　　A. appointment
　　B. interview
　　C. opportunity
　　D. assignment
　　85. The committee is expected to __________a decision this evening.
　　A. reach
　　B. arrive
　　C. bring
　　D. take
　　86. He spoke so quickly that I didn' t __________what he said.
　　A. make for
　　B. make sure
　　C. make over
　　D. make out
　　87. I wrote it down __________I should forget it.
　　A. in case
　　B. in case of
　　C. in order that
　　D. for fear of
　　88. It is not that I do not like plays. The reason why I did not go to the theater last night was that I could not__________ the time.
　　A. offer
　　B. leave
　　C. afford
　　D. manage
　　89. The chemical factory was demolished__________ protecting the environment.
　　A. in spite of
　　B. in honor of
　　C. in favor of
　　D. in the name of
　　90. After a three-hour heated discussion, all the members in the jury reached the conclusion that the man was __________of murder.
　　A. criminal
　　B. charged
　　C. guilty
　　D. faulty

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