They        have arrived at lunchtime, but their flight was delayed.
#87467
A
will
B
can
C
must
D
should
推荐题目
---Did you visit the famous museum ?  ---No. We ______ it. But we spent too much time shopping. 
#89472
A
can't have visited
B
could have visited
C
must have visited
D
shouldn't have visited
If you ________ yesterday,you ________ with your mother now.
#87090
A
set off; would talk
B
had set off; would be talking
C
set off; would have talked
D
had set off; would talk
What if you _____ to send an essay with your application? Would you have been rejected?
#86809
A
forget
B
would forget
C
had forgotten
D
should forget