He be at home because the light in his room is on.A. mustB. can’tC. canD. mustn’t

发布时间：2020-08-21 07:12:15

He     be at home because the light in his room is on.
A. must
B. can’t
C. can
D. mustn’t

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(答案→)A. must
B. can’t
C. can
D. mustn’t
解析：表示肯定性推测常用must。
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