根据提示，完成对话。

A. How are you?

B. Thank you.

C. Hi!

D. Good morning !

E. Mv name's Sarah.

1. A:                

    B: Hello!

2. A:                

    B: Fine, thank you.

3. A: Sit down, please.

    B:                      

4. A:                       Sam.

    B: Good morning, Peter.

5. A: What's your name?

    B:                      

收益类股票是随经济发展速度同步增长的股票。（）