用while和when造句我可提高悬赏,大家帮我就行

while: I was walking down the street while the police arrive.
when: When I was young,I liked playing soccer.

I am working while chatting with my friends
when i can change my job?
^^

I was doing my homework while my mother was washing cloths.
I was doing my homework when my mother washed cloths.
主从都为进行时时用"while".