高考英语名词性从句练习18
题目内容

The old man often advised the young workers on _________the machine and they learned quickly.       

2021-08-16

A.to operate

B.how operate

C.how operating

D.how to operate

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