问题
选择题
— It's the classroom! So you ______ know smoking is not allowed here.
— Oh, sorry. [ ]
A. need
B. will
C. may
D. must
答案
答案：D
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— It's the classroom! So you ______ know smoking is not allowed here.
— Oh, sorry. [ ]
A. need
B. will
C. may
D. must
答案：D