高考英语动词语态练习3
题目内容

The operation room in every hospital has to _______bacteria of any kind so that the patient being operated on doesn't get infected.   

2021-06-24

A.keep free from

B.make it free from

C.to be made free with

D.be kept free from

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