—Where is Bob? I cannot find him anywhere.—He have been off long. I heard him make a call

发布时间：2020-08-16 10:30:07


—Where is Bob? I cannot find him anywhere.
—He        have been off long. I heard him make a call just now.
A. shouldn’t
B. can’t
C. mustn’t
D. needn’t

网友回答

A. shouldn’t
(答案→)B. can’t
C. mustn’t
D. needn’t
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