题目内容
—Listen! Someone is singing in the next room. Who _______ it be? Is it Wei Fang?
—No. It _______ be her. She is at school now.
—No. It _______ be her. She is at school now.
[ ]
A. will; may not
B. must; mustn't
C. may; can't
D. may; won't
B. must; mustn't
C. may; can't
D. may; won't
C

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