问题

.If we ________ earlier, we would have had trouble getting good seats.
A:didn’t arrive
B:haven’t arrived
C:hadn’t arrived
D:couldn’t arrive
B:haven’t arrived
C:hadn’t arrived
D:couldn’t arrive
正确答案是:
同类题型
We should give the disabled encouragement tolive _________ as we do.
Sailing down the Yellow River,______.
The students are talking about ______ holiday plans happily.
I saw Liu Fang _______a bus at seven o’clock this morning . She may have missed it.
I have heard a lot of good things about you ________ I came back from abroad.