虚拟语气问题If we had taken such effective measures much earlier, the river _____ so seriously now. would not have been polluted 还是would not be polluted 为什么?
问题描述：
虚拟语气问题
If we had taken such effective measures much earlier, the river _____ so seriously now. would not have been polluted 还是would not be polluted 为什么?
答
选后者，虚拟语气的混合条件句。从句和过去事实相反，主句和现在事实相反。
答
选第一个啦.从句子意思来看这条河流已经被污染了，那么would not have been done 表示对过去已经发生的虚拟语气
答
用would not have been polluted
翻译：如果我们早点采取有效的措施,那这条河现在不会被污染的这么严重
说明这条河已经被污染了
如果用would not be polluted ,那么表示的是将来时,还没被污染
有什么不明白可以对该题继续追问
请及时选为满意答案,