Question

2012陕西高考英语选择题第17个怎么做?(有题)

Answer 1

这道题是考虚拟语气，正确答案是B。对过去发生情况的虚拟，主句用would have done，从句用过去完成时。

追问

那对现在发生情况的虚拟呢？

追答

If I were you, I will buy it. 如果我是你，我会把它买下来。