Question

【题目】---When did you go to bed last night?

---_______.

A. Until 11o,clock

B. Since my mother came back

C. Until I finished my homework

D. Not until my mother came back.

Answer 1

【答案】D

【解析】

试题分析：句意：——你昨天晚上什么时候上床睡觉？——直到我母亲回来。 A. Until 11o,clock 直到11点，表示某一动作延续到11点，指的可延续的时间段，去睡觉的时间是一个短暂性的时间点，故不对； C同A一样，也错；B. Since my mother came back 中since引导的时间状语从句，用现在完成时，故排除；D. Not until my mother came back.

中not until直到......才......；故选D。