题目内容
--Listen! Kathy is playing the piano in the next room.
--It _________ be Kathy.She has gone to Hangzhou to visit the Cross-sea Bridge.
A. can't B. mustn't C. needn't D. shan't
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题目内容
--Listen! Kathy is playing the piano in the next room.
--It _________ be Kathy.She has gone to Hangzhou to visit the Cross-sea Bridge.
A. can't B. mustn't C. needn't D. shan't