Most people from 9:00 to 5:30.A.are at work B.is at work C.do at work D.do on work选哪个为什么（

分类: 作业答案 • 2022-03-05 20:01:22

问题描述：

Most people from 9:00 to 5:30.A.are at work B.is at work C.do at work D.do on work选哪个为什么（
重要）

答

A
固定用法：be at work = be working 在工作,主语是复数,故BE用 are
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