If the homework you can go home.A. didB. has doneC. will be doneD. is done

问题补充：

If the homework , you can go home.

A. did

B. has done

C. will be done

D. is done

答案：

A. did

B. has done

C. will be done

(答案→)D. is done

解析：句意：如果这个作业完成了，你就可以回家了。这是有if引导的条件句，主语一般现在时，从句也要一般现在时。故选D。