题目

这题是不是要把句子改成虚拟语气啊?怎么改
2、We allowed the oil company to build this paper mill.Therefore,we have water pollution now.(change it to indicate something unreal)

提问时间：2020-12-28

答案

是改成虚拟
改：
We should have allowed the oil company to build this paper mill.therefore,we would not have water pollution now.
前面一句是对过去的虚拟,用should have done；后面一句是对现在的虚拟,用would do.should和would的选择是根据句意的,前句是“应该”,后句是“能够”.