---Listen! Is Kate playing the piano in
问题:
---Listen! Is Kate playing the piano in the room?
---No. It _________ be her. She has gone to London with her parents.
A.may not
B.can’t
C.mustn’t
D.needn’t
---Listen! Is Kate playing the piano in the room?
---No. It _________ be her. She has gone to London with her parents.
A.may not
B.can’t
C.mustn’t
D.needn’t