问题
选择题
That man _______ our head teacher. Our head teacher has gone to town. [ ]
A. can't be
B. mustn't be
C. may not be
D. might not be
答案
答案：A
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That man _______ our head teacher. Our head teacher has gone to town. [ ]
A. can't be
B. mustn't be
C. may not be
D. might not be
答案：A