问题补充:
I won’t leave the classroom until my homework.
A. finishes
B. is finished
C. will finish
D. are finished
答案:
A. finishes
(答案→)B. is finished
C. will finish
D. are finished
解析:后句的从句根据句意是一个被动句,我的作业只能承受动作,充当承受者,被动句
的结构为be+过去分词,my homework 是不可数名词,故选B。
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