题目内容
【题目】Jack, look at the traffic lights. We must stop and wait at a_______ light. ( )
A. greenB. redC. yellow
【答案】B
【解析】
略
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题目内容
【题目】Jack, look at the traffic lights. We must stop and wait at a_______ light. ( )
A. greenB. redC. yellow
【答案】B
【解析】
略