-Listen ! Helen is singing in the next room.It be Helen. She has gone to Beijing.A. can’t B. mustn’t C. may D. neen`t 题目和参考答案——青夏教育精英家教网—

题目内容

—Listen ! Helen is singing in the next room.

It ____ be Helen. She has gone to Beijing.

A. can’t B. mustn’t C. may D. neen`t

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