At the railway station,the mother waved goodbye to her s Wap版

试题详情及答案解析

At the railway station,the mother waved goodbye to her son until the train was .

A．out of sight	B．out of reach
C．out of order	D．out of place

答案：A

试题分析：考查介词短语辨析。A看不见；B够不着；C杂乱无序；D不协调；句意：在火车站，这位母亲向儿子挥手直到火车看不见为止。根据句意说明A正确。
考点：考查介词短语辨析