优题课 - 聚名师,上好课(www.youtike.com)
  首页 / 试题 / 高中英语 / 试题详细
  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:572

The days are gone________you can breathe fresh,unpolluted air or drink clean, unpolluted water in the countryside.

A.when  B.that
C.where  D.which
登录免费查看答案和解析

Thedaysaregoneyoucanbreathefre