查人人中国名人网北京国谊宾馆位置:用while和when造句
来源：百度文库 编辑：查人人中国名人网 时间：2024/05/10 03:55:49
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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.