He looks very tired . He to bed too late last night . A. must go B. must have goneC. coul

发布时间：2020-08-17 13:33:58

He looks very tired . He      to bed too late last night .
A. must go
B. must have gone
C. could go
D. didn''t go

网友回答

A. must go
B. must have gone
C. could go
D. didn''t go
解析：must 用于表示推测时，只能用于肯定句，完成式表示对过去情况的推测。
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