---Is that Lucy’s sister, Lily?---No, it _______ be her. She has gone to English.
#75840
A
could
B
can
C
can’t
D
mustn’t
推荐题目
There was something wrong with the network,or the e-mail____ earlier.
#62904
A
could have been sent
B
might be sent
C
need have been sent
D
must be sent
---Are you content with her lecture? ----Far from that. It _______.
#63457
A
may have been good
B
couldn’t have been worse
C
can’t be better
D
must be better