—Last night I watched the football match and didn't go to bed___12 o'clock.—Last night I watched the football match and didn’t go to bed＿＿＿＿12 o’clock．（2002黄冈市）A． when B． until C． as D． while为什么要选B而不是A呢?求解析,谢谢
问题描述：
—Last night I watched the football match and didn't go to bed___12 o'clock.
—Last night I watched the football match and didn’t go to bed＿＿＿＿12 o’clock．（2002黄冈市）
A． when B． until C． as D． while为什么要选B而不是A呢?求解析,谢谢
答
b
not ……until
是固定搭配，直到……才
答
not... until 直到。。。。。才。。。。的用法
句子意思是：昨晚我看足球比赛看到12点才睡觉
其他的都不通
因为：1. when，as，while都是加从句的（也就是完整的句子）
2. 句子意思上判断那三个也都不对
答
not .until 直到……才