—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

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—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

not .until 直到……才

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

b
not ……until
是固定搭配，直到……才

I called you last night(对last night 提问） I watched TV last night.(用 at eight o'clock last night 代替 last night) I didn't s____ well last night. I did my homework last night. I was at home last night.(否定) I (w )to my parents last night I slept seven hours last night I stayed up late last night. I have____uncle.He saw____UFO last night (a) i w----some emails last night I went to the cinimen last night. I 什么 for it all last night i feven a had night last i wasn't quite_____myself last night. I had a stranged dream last night. i stayed up t______23:00 last night Last night I was ____(醒) all night. i was watched TV last night.OR I watched TV last night.区别?