题目内容

【题目】─ the students (draw) when the teacher came in?
─ No, they .

【答案】Were;drawing;weren't
【解析】强调某个动作正在进行时,另一个动作突然发生,常用“过去进行时+when+一般过去时”,主语the students是复数,故填 Were drawing,句意是:当老师进来的时候,学生们正在画画吗?一般以稳健的否定回答是:No,they weren't.

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