问题:
There are no customers in the hotel. It ______ have the friendliest service.
[ ]
A. can"t
B. must
C. may
D. needn"t
There are no customers in the hotel. It ______ have the friendliest service.
B. must
C. may
D. needn"t
[ ]
A. can"t B. must
C. may
D. needn"t
参考答案: