阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话。

A. Would you like to join us? B. Would you mind doing some cleaning? C. Don't worry. D. Thanks for your help. E. Why don't you go with us? F. What's up? G. I'll be there on time.

A: Nice to meet you, Diana. Welcome to our class. My name is Li Xiang.

B: Nice to met you, too.

A: You look a little unhappy.  

B:I have no friends to talk with, so I'm worried.

A:_ I can help you.

B: Thanks, Li Xiang.

A: Mm, I think you should join in some activities. We are going to the nursing home to help the old people this Saturday.

B: Yes, I'd love to. When and where shall we meet?

A: At the school gate at 9:00 his Saturday.

B: OK. _

A: That's great! I think you will make many new friends in this activity

B: I think so.  

A: You're welcome.