—Listen! Is Mary singing in the next room?—No. It _______ be Mary．She has gone to Shanghai for an important meeting.
#74311
A
can’t
B
may not
C
mustn’t
D
needn’t
推荐题目
–I’m not good at English, Amy. What should I do?--You practice it more. For example, you read English every morning.
#74275
A
should; shall
B
should; could
C
could; will
D
must; are able to
We were looking for you all this morning. You office without a word.
#62458
A
mustn’t have left
B
shouldn’t have left
C
couldn’t have left
D
needn’t have left
The lady in this photo ________ be over fifty! She looks so young!
#74525
A
mustn’t
B
must
C
can’t
D
can
-- _____ I ask you a question, Mr. Wang? -- Yes, you _______.
#76518
A
Can, can’t
B
Can, may
C
May, can
D
May, mustn’t
—Is Jack on duty today? —It ______ be him. It is his turn tomorrow.
#76227
A
mustn’t
B
won’t
C
can’t
D
needn’t