问题
选择题
—Who's the man over there? Is it Mr Black?
—It _____ be him. He's much taller. [ ]
A. can't
B. mustn't
C. should
D. may
答案
答案：A
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—Who's the man over there? Is it Mr Black?
—It _____ be him. He's much taller. [ ]
A. can't
B. mustn't
C. should
D. may
答案：A