__________,they provide a rapid means of getting information about many people.A.Properly be used B.Properly used C.If u
__________,they provide a rapid means of getting information about many people.A.Properly be used B.Properly used C.If use it properly D.Been properly used 原因要講清楚
英語(yǔ)人氣：475 ℃時(shí)間：2019-10-19 15:02:56
優(yōu)質(zhì)解答
選c.這里面省略了主語(yǔ)They,因?yàn)楹竺嬗衪hey,所以可以省略.然而一個(gè)句子不能有兩個(gè)動(dòng)詞,所以A不選.B中把他省略的東西補(bǔ)上就是It is properly used.主語(yǔ)是it 與后面的主語(yǔ)不一樣,不能省.沒(méi)有D這種用法
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