补全对话。

Jack: Hi, Frank.

Frank：Hi，Jack

Jack：   1    

Frank：Yes，I have some books to read, but I can do it later.

Jack: I want you to do me a favor.

Frank: Go ahead,    2    

Jack: Professor Smith is coming this afternoon. I am expected to meet him at the airport, but I have an important meeting to go to.

Frank: I can do it for you.    3  

Jack: He’s about your age, in his early thirties. Tall and handsome.

Frank :  4  

Jack: Oh, about three o’clock. He is taking flight number 231 from Detroit. Thank you.

Frank:   5    

A. See you this afternoon.

B. How can I recognize him?

C. What do you want me to do?

D. Are you free this afternoon?

E. When should I leave for the airport?

F. I am honored to meet the famous professor.

G. Are you going to the meeting this afternoon?