原创《Unit1 Were you at home yesterday》ppt课件-302edu教育资源网

小小儿歌，请记牢我(I)用am ,你(you)用are is 连着他(he)、她(she)、它(it) 单数is 复数are 过去式我(I)用was ,你(you)用were was 连着(he)、她(she)、它(it) 单数was ,复数were

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