They        have arrived at lunchtime, but their flight was delayed.
#87467
A
will
B
can
C
must
D
should
推荐题目
I left very early last night, but I wish I _____ so early.
#89363
A
didn’t leave      
B
hadn’t left
C
haven’t left      
D
couldn’t leave
—Did Jim come?—I don’t know. He _______ while I was out.
#89860
A
might have come
B
might come
C
mush have come
D
should have come
I’d rather you did some housework when you are free ,but you______ .
#89516
A
didn’t
B
shouldn’t
C
weren’t
D
don’t