题目内容
【题目】当暴风雨来临时你妈妈在做什么？
________________?
【答案】What was your mother doing when the rainstorm came?
【解析】
when引导的时间状语从句用一般过去时，主句则用过去进行时。when the rainstorms came“当暴风雨来临时”，What was sb doing sth?“某人正在做某事？”故填What was your mother doing when the rainstorm came?
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