美女pk精子4小游戏:用while和when造句

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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"。

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

while: I was walking down the street while the police arrive.

when: When I was young,I liked playing soccer.

用while和when造句 关于when和while~ while和when的区别 when 和while 的使用?? when和while的用法 when和while 的用法 while和when的区别 when 和 while的用法 when和while的区别？ when和 while用法区分??!!