When I came back yestoday evening,my brother___his homewrok.A.is doing B.has done C.was doing并且含有解析
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When I came back yestoday evening,my brother___his homewrok.A.is doing B.has done C.was doing并且含有解析
When I came back yestoday evening,my brother___his homewrok.A.is doing B.has done C.was doing
并且含有解析
When I came back yestoday evening,my brother___his homewrok.A.is doing B.has done C.was doing并且含有解析
C
yesterday说明事情发生在过去.when的主句是过去时,从句是过去进行时.
When I came back yestoday evening,my brother__C_his homewrok. A.is doing B.has done C.was doing
当我昨天晚上回来的时候,我的弟弟正在做作业
过去的时间 正在做某事 所以用过去正在进行时
如还有疑问,欢迎可以进入乐知各级别英语外教课免费旁听。
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When I came back yestoday evening,my brother__C_his homewrok. A.is doing B.has done C.was doing
当我昨天晚上回来的时候,我的弟弟正在做作业
过去的时间 正在做某事 所以用过去正在进行时
如还有疑问,欢迎可以进入乐知各级别英语外教课免费旁听。
希望能帮到您
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c. was doing
理由:句子含义是:昨天晚上当我回家时,我哥哥正在做家庭作业,这里表示过去的某个时候(我回家时),某人正在干某事---哥哥在做作业,强调那个时候正在做。