问题
选择题
—Be quiet, Mr Smith is coming.
—Don't worry. It _____ be him. Mr Smith is much taller. [ ]
A. mustn't
B. must
C. can't
答案
答案：C
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—Be quiet, Mr Smith is coming.
—Don't worry. It _____ be him. Mr Smith is much taller. [ ]
A. mustn't
B. must
C. can't
答案：C