问题
We shouldn’t have come north for Christmas vacation. If we _______, we wouldn’t be stuck in the snow right now.
A:wasn't
B:didn't
C:hadn't
D:weren't
B:didn't
C:hadn't
D:weren't
正确答案是：
同类题型
hool _____ my father teaches is aworld-famous one, _____ was set up 100 years ago．
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