问题补充：
Only after your homework watch TV.
A. have you finished; you can
B. you have finished; can you
C. have you finished; can you
D. you have finished; you can
答案：
A. have you finished; you can
B. you have finished; can you
(答案→)C. have you finished; can you
D. you have finished; you can
解析：考察倒装句，only放句首时主句要采用倒装句，所以该句倒装后面的主句。
句意为只有在你完成家庭作业以后，你才可以看电视。
