题目内容
【题目】We would hesitate to pull over to the side of the road ________ a stranger in a car wave us down.
A. should B. were C. if D. if only
【答案】A
【解析】
试题分析:考查虚拟的的用法。句意为:如果一个陌生人在车里向我们挥手,我们会考虑要不要把车停下。Should do是对一般将来时的虚拟,故选A项。
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