There 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D. out of date
网友回答
(答案→)A. out of sight
B. out of reach
C. out of order
D. out of date
解析:短语辨析。A看不见;B够不着;C杂乱;D过时;句意:知道火车看不见了,那位母亲才和女儿挥手再见。根据句意说明A正确。