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when____why,he kept silent a.asking b.ask c.asked d.being asked

分类: 作业答案 • 2021-12-03 14:00:05

问题描述：

when____why,he kept silent a.asking b.ask c.asked d.being asked

答

c这是一个省略句,asked前面省略了 he was英语中的省略句只能是主语和系动词一起省略