He( ) have come early this morning for he wored late last night.A.might B.may not C.cannot D.mustn't

分类: 作业答案 • 2021-12-19 16:21:16

问题描述：

He( ) have come early this morning for he wored late last night.
A.might B.may not C.cannot D.mustn't

答

C
他今早不可能来得早,因为他昨晚工作到很晚
can't have done sth 表示“（过去）不可能做过某事”
can 表推测时,只用于否定句和疑问句
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