问题 选择题

On Saturdays, students are very proud to be         on the street to guide passers-by to obey traffic rules.

A.characters

B.volunteers

C.operators

D.graduates

答案

B

题目分析:A. characters人物,性格,B. volunteers   志愿者,C. operators接线员,操作员,D. graduates毕业生,句意:在星期六,学生很自豪能做街上的自愿者指导行人遵守交通规则。根据句意选B.

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