Everyone ______ be polite to the old people.
#76484
A
may
B
should
C
can
D
could
推荐题目
—Hi，Joan.Any idea where Tom is?—He ________ on the playground.I saw him there playing football just now.
#62487
A
shall be
B
should have been
C
must be
D
might have been
--- Hi, Tom. Any idea where Jane is? --- She _________ in the classroom. I saw her there just now.
#63429
A
shall be
B
should have been
C
must be
D
might have been
— Who _____ be phoning us at this time of night? — It might be your sister.
#63064
A
might
B
can
C
dare
D
must
--Why are your eyes so red? You _______ have slept well last night.---Yeah, I stayed up late writing a report.
#62948
A
can't
B
mustn't
C
needn't
D
won't