Question

—When did your daughter go to sleep last night?
—She didn’t go to bed ______ she finished her homework.

A．before

B．after

C．until

D．then

Answer 1

C

解析試題分析：句意：——昨晚你的女兒什么時候去睡覺？——她直到做完家庭作業才上床睡覺。A. before 在……之前； B. after 在……之后； C. until 直到； D. then然后。not……until……直到……才……故選C。
考點：考查連詞的用法。