{01}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
解析: 试题分析: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. 本题选B。 {02} A sense of __________ is the basic requirement for people working in the service industry, such as education and health care.
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