高考英语动词时态练习4
题目内容

Alexander Fleming discovered penicillin in 1928.Otherwise, health care ________ as difficult as ever.

2021-06-19

A.would have been remained

B.would be remained

C.would have remained

D.would remain

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