Question

--Dad, can I go out to play with my friends now?'
--Not until your homework__________ .
A. will finish        B. finishes        C. is finished

Answer 1

C

试题分析：not until直到……才，be+动词过去分词构成被动语态，句意：爸爸，我现在可以出去跟朋友玩吗？直到你的作业被完成才可以。故选C。