急需30个英语对话句子，简单些的就行。

A：Hello.May I speak with C, please
B：I'm sorry, C's not here at the moment. I'm afraid he's stepped out. Would you like to leave a message
A、B、C指三个人

简单的5句英语对话

A：Hello,What are you doing please? 嗨，你在干什么呀？

B：I am doing my homework,what is up?我正在做功课，有事吗？

A：Nothing else,I just want to know are you free this afternoon.没什么，我只是想知道你下午有空吗？

B: Yes,So...应该有空，怎么啦？

A: What about playing football at 4:30PM? 下午4：30分去踢足球，怎样？

B: It is a good idea.好主意！