—Tom can’t find his gloves. Are these blue gloves his?      —No, they ______ be his. His gloves are black. 
#74943
A
must
B
may
C
can’t
D
mustn't
推荐题目
Students ought ______ the truth.
#76163
A
told
B
tell
C
telling
D
to tell
—Must I finish the work today?—No, you    .
#75882
A
can’t
B
mustn’t
C
needn’t
D
don’t
The door _______ open, no matter how hard she pushed. 
#62534
A
shouldn‘t
B
couldn't
C
wouldn't
D
mightn't