问题
选择题
The man in the office _____ be Mr. Black because he went home just now. [ ]
A. mustn't
B. may not
C. can't
D. needn't
答案
答案：C
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The man in the office _____ be Mr. Black because he went home just now. [ ]
A. mustn't
B. may not
C. can't
D. needn't
答案：C