题目内容

--Listen! Kate is playing the piano in the next room.
　　--It _______________be Kate. She has gone to Hangzhou to visit the Cross-sea Bridge.
A．needn’tB．mustn’tC．can’tD．shalln’t
C
can’t不能；mustn’t不可以；needn’t不必 ；shalln’t不会,根据上下文意思,此处不能是凯特,故选C.
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