What do the students need to do when a teacher comes into th

问题描述:

What do the students need to do when a teacher comes into the classroom
1个回答 分类:英语 2014-09-28

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What do the students need to do when a teacher comes into the classroom
当一名老师进入教室的时候,学生们需要做什么?
when引导的时间状语从句.
 
 
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