问题
Is the girl in the red skirt your sister?—No. It _______ be her. She has flown to Australia.
A:can’t
B:needn’t
C:must
D:may
B:needn’t
C:must
D:may
正确答案是：
同类题型
When will the train ______ here?—In five minutes.
Excuse me, Mr. He, are you free? Lin Tao and I want to tell you _____.–Sure.
There is going to be a wonderful party _____ the evening of October lst, 2009. [ ]
Mother’ s Day is coming . I’ m thinking about _____ .
This morning, when I walked by, I saw many children ____ in the park.