网上聊天

1．How are you doing?（你好吗？）2． What's up?（出什么事了/你在忙些什么/怎么了？）3． Hi. Long time no see.（嗨，好久不见了。）4． Today is a great day.（今天是个好日子。）5． May I have your name, please?（请问尊姓大名