Professor Smith, along with his assistants, _________on the project day and night to meet the deadline.

      A. work         B. working          C. is working       D. are working

---- So you missed the lecture given by Professor Smith.

---- ____.I got there 30 minutes before it finished.

A. Not exactly    B. Not really     C. Not a little   D. Not at all

In view of the worsening environment, the local government is seeking advice from Professor Smith, who is an expert ______ it.

A. within          B. for          C. on          D. beyond

I’ve listened to Professor Smith’s talk about medicine,but I still haven’t got a good understanding of its key _________.

A.notes          B.information        C.words         D.points

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?