According to the air traffic rules, you ___ switch off your mobile phone before boarding.
#90472
A
may
B
can
C
would
D
should
推荐题目
—He should have come to join in the thorough cleaning. —He ________, I think. It's not his turn.
#90299
A
needn't have to
B
needn't have
C
didn't have to
D
doesn't need to
I know it’s normal for such a thing to happen, but we _____ it if we’d been more careful.
#86837
A
need have avoided
B
could have avoided
C
will have avoided
D
had avoided
—She looks very happy.She_______have passed the exam.—I guess so.It’s not difficult after all.
#89844
A
should
B
could
C
must
D
might
— Has Tim started? He said he would join in the party.— He ____．He is a man of keeping his word.
#88048
A
could have left
B
must have left
C
can’t come
D
won’t be coming
He suggested the problem worth paying attention ______ at the meeting.
#86824
A
to be discussed
B
to being discussed
C
to discuss
D
to discussing