I

⑴This is my brother, Mike. 

⑵Goodbye, Bobby.   

⑶She's my friend, Yang Ling.

⑷Are you Tina?   

⑸Hi, I'm Su Hai.    

⑹Good evening, Alice.   

⑺This is Tim.   

⑻Good afternoon, class.    

II

A. Hi, I'm Wang Bing.

B. Good afternoon, Miss Li

C. Hello, Mike.

D. Goodbye

E. Good evening.

F. No, I'm not.

G. Good morning, Yang Ling.

H. He's my brother.