【题目】— It rained cats and dogs this morning. I'm glad we took an umbrella.
— Yeah, we would have got wet all over if we _______.
A.hadn't
B.haven't
C.didn't
D.don't

【答案】A
【解析】句意：——今天上午大雨倾盆。我们到了一把伞很高兴。——是呀，如果我们不带伞，就湿透了。题干I'm glad we took an umbrella.表明带了伞是事实，那么假设没带伞，就是与过去事实相反的假设，所以从句部分要用had/hadn't done的形式。