—Mom,myclassmatesareplayingoutside.CanIjointhem?—Notunt...

来源：语文精选馆 3.16W

— Mom, my classmates are playing outside. Can I join them?

— Not until your homework .

A. finishes B. is finished

C. finished D. was finished

试题分析：句意：妈妈，我的同班同学在外面玩，我能加入他们吗？直到你的作业做完才能加入。动作的承受者作主语用被动语态。其结构是，主语+be+done。until引导的时间状语从句，从句用一般现在时表示将来时态，故选B。

考点：考查一般现在时的被动语态。