A: How are you?

B: Fine, thank you. ______?　　　　　　　　

A: ______.　　　　　　　　

[    ]

　　A. Are you, I'm Liu Lu   B. And you, I'm OK   C. Hello, OK

 —____________? —They're fine, thank you.

A. How are you                      B. Who are they 

C. What are they                   D. How are your mother and father

 ---                          ?    --- They’re fine, thank you.

A. How are you                   B. Who are you

C. What are they                   D. How are your mother and father

---                           ?

--- They’re fine, thank you.