----You didn’t wait for Mr. Smith last night, did you? -----Yes, but we           . He didn’t return home at all.
#87122
A
don’t have to
B
didn’t need to
C
needn’t have
D
should have
推荐题目
It is demanded that the plan _____ out as soon as possible. 
#87223
A
must be carried
B
is to carry out
C
carried
D
be carried
At last he       finish the work ahead of time.
#89655
A
could
B
was able to
C
could have done
D
would have been able to
It would be very safe if you_________ the door_________ to the garden.
#89583
A
fasten;led
B
will fasten;leads
C
fastened;leading
D
fastened;to lead