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Doingeyeexercisesoneoftheusefulwaystoprotectoureyes.()A.isB.areC.were

题目详情

Doing eye exercises     one of the useful ways to protect our eyes.(  )

A. is

B. are

C. were

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答案和解析
动名词作主语,谓语动词用单三的形式.根据Doing eye exercises可知,谓语动词用is,故选:A.