题目内容

Ｉdidn’t go to bed _______ I finish my homework.

A. after B. when C. if D. until

D

【解析】

试题分析：after，在……之后；when，当……时；if，是否，如果；until，直到……才。句意：我知道完成作业才睡觉。not……until，直到……才……，故选D。

考点：连词辨析

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