题目内容
【题目】Look! He ________his mother do some housework. ( )
A.is helpingB.is helpC.helpsD.helped
【答案】A
【解析】
略
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题目内容
【题目】Look! He ________his mother do some housework. ( )
A.is helpingB.is helpC.helpsD.helped
【答案】A
【解析】
略