Question

— John, you go out to play until your homework &nb...

— John, you go out to play until your homework . —OK, Mum. A．must; finishes B．can’t; is finished C．can’t; has finished D．needn’t; finishes

Answer 1

B

考查情态动词和动词被动语态的用法。该句使用了not…until结构，意思是：直到你完成了作业，才能出去玩。第一空用can’t表示“不能”； homework是finish动作的承受者，它做主语时，用被动语态；此处是状语从句，用一般现在时表示将来。