Overtwohundredyears________sinceth

发布时间：2020-07-25 21:27:51

Over two hundred years ________ since the United States ________ in 1776．A.have passed; foundedB.has passed; were foundedC.have passed; was foundedD.has passed; was founded

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D解析一段时间作主语时被当作整体看待，谓语动词一般用单数；根据结构可判断从句中应用被动结构。
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