I won't go home ______ I finish my homeworkA when B why c before D after

I won't go home ______ I finish my homeworkA when B why c before D after
I won't go home ______ I finish my homework
A when B why c before D after

I won't go home ______ I finish my homeworkA when B why c before D after
C
其实,until最符合老外的说话习惯,退而求其次,就是before了

c