题目内容
—Who is singing in the next room?
— It _____ be Lucy. She has gone to Hong Kong.
A. can’t B. must C. may not D. needn’t
A
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题目内容
—Who is singing in the next room?
— It _____ be Lucy. She has gone to Hong Kong.
A. can’t B. must C. may not D. needn’t
A
