题目内容
【题目】The students were singing an English song _______ Mr. Xiang came into the classroom.
A. after B. when C. before D. as
【答案】B
【解析】
试题分析:句意:当向老师进入教室时,学生们正在唱一首英语歌曲。When引导的时间状语从句用一般过去时,主句用过去进行时,故选B。
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题目内容
【题目】The students were singing an English song _______ Mr. Xiang came into the classroom.
A. after B. when C. before D. as
【答案】B
【解析】
试题分析:句意:当向老师进入教室时,学生们正在唱一首英语歌曲。When引导的时间状语从句用一般过去时,主句用过去进行时,故选B。