—I knocked but nobody answered the door. ----They _____asleep then and didn’t hear you.
#88169
A
must be
B
should be
C
must have been
D
should have been
推荐题目
No matter how the enemy frightened him ,he ______say a word .
#89836
A
did not
B
could not
C
might not
D
would not
I hoped Tina _________ to my birthday party next Thursday.
#87628
A
to come
B
is coming
C
will come
D
was coming
I _______ have been more than six years old when the accident happened.
#89803
A
shouldn’t
B
couldn’t
C
mustn’t
D
needn’t
—She looks very happy. She ______ have passed the exam.—I guess so. It’s not difficult after all.
#90482
A
should
B
could
C
must
D
might
It would be impossible for him to leave hospital tomorrow if he first aid when the accident happened.
#86821
A
hadn’t been given
B
wasn’t be given
C
shouldn’t be given
D
wouldn’t be given