There ia no light in the room. They asleep.A. should have gone toB. must beC. could goD.

发布时间：2020-08-15 02:20:57

There ia no light in the room. They      asleep.
A. should have gone to
B. must be
C. could go
D. might be going

网友回答

A. should have gone to
(答案→)B. must be
C. could go
D. might be going
解析：must在此表示推测,意思是: 一定,必定.
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