问题
选择题
Bob, you can't go out to play with your friends until your homework
A．will finish
B．is finished
C．will be finished
D．has finished
答案
答案：B
题目分析：句意：鲍勃，直到你完成作业，你才能出去和你的朋友玩。分析：考查固定句型：not…….until直到……才……，引导的时间状语从句，体现主将从现的原则，当主句中有情态动词时，从句也用一般现在时，作业被完成，体现为被动语态。因此用一般现在时的被动语态。故选B