I had watched TV I did homework 改成三句非谓语从句怎么改?

题目

I had watched TV I did homework 改成三句非谓语从句怎么改?
新概念英语上的练习!
最好一小时内给出答案!
若第一个答出来,

答案

Having watched tv,i did my homework.
After watching tv,i did my homework.