He________hishomeworkat7:00.A.s

发布时间:2020-07-28 03:00:34

He ________ his homework at 7:00.A.start doesB.starts to doC.starts doD.start to do

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B解析主语是三单形式,谓语动词须用三单形式,排除A和D,start后跟动词时须跟动名词或动词不定式.
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