首页 / 高中英语 / 试题详细
  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 2118

If we had taken such effective measures much earlier, the river__________so seriously now.

A.is not polluted B.would not be polluted
C.had not been polluted D.would not have been polluted
登录免费查看答案和解析

Ifwehadtakensucheffectivemeasu