—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
#88027
A
can; must
B
can; may
C
must; can
D
may; must
推荐题目
—What does the sign over there read?—"No person_______ smoke or carry a lighted cigarette, cigar or pipe in this area."
#87756
A
shall
B
may
C
must
D
Will
It has been announces that all takers ____ remain in their seats until all the exam papers have been collected.
#90319
A
can
B
may
C
shall
D
will
The sleeping baby would be scared ________ a sudden loud noise.
#86493
A
was there
B
there was
C
should there be
D
there should be
—I’ m sorry. I ______ at you the other day.---Forget it. I was a bit out of control myself.
#87288
A
shouldn’t shout
B
shouldn’t have shouted
C
mustn’t shout
D
mustn’t have shouted
I would have come earlier, but I ________ that you were waiting for me.
#89381
A
didn’t know
B
hadn’t know
C
would have known
D
haven’t known
