根据对话内容，从对话后的选项中选出能填入空白处的最佳选项。并在答题卡上将该项涂黑。选项中有两项为多余选项。

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?