问题
选择题
If your homework ________ , you may watch TV for half an hour.
A．is finished
B．will be finished
C．has finished
D．will finish
答案
答案：A
if后引导的条件句遇到将来用一般现在时代替，本题的条件句为被动句，结构为be+动词过去分词，意思为家庭作业被完成，故本题选A。
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