---Who is the tallest boy? ---It ______ be John.. John is of medium height.
#75022
A
must
B
needn’t
C
might
D
can’t
推荐题目
— I missed the earliest flight in the morning. It was really a pity. —You _________ to the airport by taxi instead of by bus.
#62664
A
should go
B
should have left
C
should leave
D
must have gone
The problem is too difficult for him. He _______ solve it by himself without any help.
#76048
A
can't
B
mustn't
C
shouldn't
D
needn't
---- Is Ann knocking at the door?--- No, it ______ be Ann. She has gone to Beijing.
#76806
A
can’t
B
mustn’t
C
needn’t
D
may not