---There is somebody knocking at the door. Who________ it be?---I’m not sure. It ________ be a postman.
#75825
A
may; must
B
will; can
C
can; may
D
may; will
推荐题目
---Can you play the guitar?---________.
#74839
A
No,I can
B
Yes,I can’t
C
I can play the guitar
D
No,I can’t
It ________ be the postman at the door.It's only six o'clock.( 2011·江西)
#62159
A
mustn't
B
can't
C
won't
D
needn't
-- What will the weather be like tomorrow? -- It ______ be rainy, cloudy or sunny. Who knows?
#78279
A
must
B
might
C
shall
D
should
--- Have you decided which club to join?--- Not yet. I __________ go to the Music Club.
#74407
A
must
B
may
C
need
D
should
—Is Jack on duty today? —It_____ be him. It’s his turn tomorrow.
#62168
A
mustn’t
B
won’t
C
can’t
D
needn’t