问题补充:
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:
(答案→)A. out of sight
B. out of reach
C. out of order
D. out of place
解析:介词短语辨析。A视野之外;B够不着;C杂乱;D不得其所的,不适当的;结合句意可知A正确。句意:在火车站,那位妈妈向女儿挥手告别直到火车消失在视野中。