Question

【题目】I didn't go to bed ________ my father came back late last night.

A. so B. until C. though D. although

Answer 1

【答案】B

【解析】

句意：昨晚直到我父亲很晚回来，我才上床睡觉。考查连词辨析题。so所以，表结果；until与not连用表示“直到才”，引导时间状语从句；though/although尽管，表让步。本句是时间状语从句，需用until连接；根据句意结构和语境，可知选B。