题目内容
【题目】He is ________ the suona but then the doorbell rings. ( )
A. playing B. plays C. played
【答案】A
【解析】
略
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题目内容
【题目】He is ________ the suona but then the doorbell rings. ( )
A. playing B. plays C. played
【答案】A
【解析】
略