第二节：补全对话（共5小题，满分5分）
根据对话情景和内容，从对话后所给的选项中选出能填入每一空白处的最佳选项。选项中有两个为多余选项。
Jack: Hi，Frank.
Frank: Hi, Jack.
Jack:   56   
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.    57   
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.      58    
Jack: He’s about your age, in his early thirties. Tall and handsome.
Frank:      59     .
Jack: Oh, about three o’clock. He is taking flight number 231 from Detroit. Thank you.
Frank:      60     .

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?