英语词法代词练习题12
题目内容

Almost every developing country went through a period ______ pollution became serious with therapid development.

2020-11-13

A.where

B.whose

C.of which

D.in which

题目答案

试卷相关题目

最新试卷
热门试卷

长理培训客户端 资讯,试题,视频一手掌握

去 App Store 免费下载 iOS 客户端