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71．collegegraduate village officials have contributed greatly to the rural areas. 72．were doubtful about
73．without her (help)/but for her (help)/if she hadn?t come74．she and other officials took the lead to contract the farming land.
75．her plan worked. villagers soon contracted, worked hard and made much money. 76. transport 77. reliable 78. frightens 79. violence 80. reward 81. persuade of 82. suffering from 83. rescued from 84. devote to 85. escape from 参考范文：
lately, our class had a class meeting on whether we should participate in the students? activities at school, which includes literature, science, culture, sports and so on.
at the class meeting, some students say that they can choose what they like according to their own interests. some think that it can enrich their knowledge and make their spare time colorful. also they are aware that it can show their personality and build up the bridge of communication among the students.
some other students, however, are against it, thinking that it is of no help for their future growth. they hold the view that it may waste their time and energy and affect their learning.
as far as i am concerned, i think it is a chance to display our talent in our spare time and it plays an important part of campus culture. however, we should make sure that it doesn?t take up too much of our time or influence our study.