题目内容
【题目】Sam came into the classroom. (改为否定句)
Sam ________ ________ into the classroom.
【答案】didn’t come
【解析】
略
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题目内容
【题目】Sam came into the classroom. (改为否定句)
Sam ________ ________ into the classroom.
【答案】didn’t come
【解析】
略