题目

At the railway station, the mother waved goodbye to her daughter until the train was _______. A. out of sight      B. out of reach      C. out of order    D. out of place 答案：A 解析: 句意：“在火车站，母亲一直挥手同女儿告别直到火车远到看不见。故正确答案为A。 “out of reach”“手不能及，非某人能力所及”；“out of order”“出故障，工作不正常”；“out of place”“不在适当的地方，不适当的”

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