问题
选择题
—Mum, must I finish my homework right now?
—Oh, you_____.[ ]
A. mustn't
B. needn't
C. can't
D. may not
答案
答案：B
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—Mum, must I finish my homework right now?
—Oh, you_____.[ ]
A. mustn't
B. needn't
C. can't
D. may not
答案：B