谁能给我写个3分钟英语3人对话啊?关于环境保护的.

A:Hello!B:Hello,it'nice to meet you。A:It' nice to meet you,too。I called you a lot day。But the phone was busy。Where were you?B:Well,I'm went to school and help our school janitor。A:Did you chean the school?B:Yes,I did。The school is very dirty!We musn't throw rubbish on the floor。We shoud throw them in the bin。A:You are right。I remenber。B:Yes,Goodbye!A:Byebye!