finishing his homework前面为什么要加after

we went to bed after he finishing his homework改错 He didn't go home.He went home after finishing his homework. After finishing his homework ,he turned on the TV怎么意思 After finishing his homework he went to write go on a letter After finishing his homework he went on _____ a letter to hi After finish doing my homework 和 After finishing my homework After doing your homework 中do为什么要加ing After finishing the homework,she went to bed.After [ ] [ ] t After finishing the homework,we must (c　　) it carefully. After finishing her homework,Wendy continued working on her 英语翻译________ after finishing your homework _____ you watch T 英语翻译Every weekend,after finishing their homework!Li Yong and