问题

He is a badtempered man, but he ________ be quite charming when he is cheerful.[ ]
A:shall
B:must
C:dare
D:can
B:must
C:dare
D:can
正确答案是:
同类题型
With everything needed________, she declared that the party began[ ]
Measures must be taken to prevent pollution ________happily
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Who is the man over there Is it Mr Li—No, it ______ be him. Mr Li has gone to America.