He looks sleepy. He must to bed very late last night. [ ] A． be B． have gone C．
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![He looks sleepy. He must to bed very late last night. [ ] A． be B． have gone C．](/pic/43_986079.jpg)
He looks sleepy. He must _____ to bed very late last night.
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A． be B． have gone C． be going D． go
试题答案
答案：B
提示：之所以使用表示“主观推测：一定……”的must B． have gone，是由上文内容He looks sleepy.决定的。 |