—I called you at 9 last night，but no one answered.—Sorry，I ________ sleeping.I went to bed very early.
#62284
A
need have been
B
would have been
C
must have been
D
should have been
推荐题目
─ Is the woman in white our manager? ─ It ________be her. She has just left for Shanghai.
#74491
A
must
B
may
C
can’t
D
couldn’t
—Look at the boy running on the ground. Is it Davis?—It ______ be him. I saw him go to the teacher’s office just now.
#74465
A
mustn’t
B
can’t
C
could
D
might
You _____ her in her office last Friday, she’s been out of town for two weeks.
#62649
A
needn’t have seen
B
must have seen
C
might have seen
D
can’t have seen
—People find it hard to get across the river．—I think at least two bridges over it．
#77307
A
need
B
are needing
C
will need
D
should be needed