问题
选择题
--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’t
B．mustn’t
C．can’t
D．shalln’t
答案
答案：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.