考试
2020-03-14 01:51:09

4731 In our class, when the be

题目描述

In our class, when the bell rang and the teacher closed his book, it was a___________



In our class, when the bell rang and the teacher closed his book, it was a

___________ for everyone to stand up.

A. signal B. chance C. mark D. measure

请帮忙给出正确答案和分析,谢谢!

答案解析

题目: In our class, wh

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