32、----- Would you like to buy a new MP4?

----- Sure, but I _____ . I don’t have enough money at the moment.

A. don’t afford    B. can’t afford to     C. afford to          D. will afford

31、Dogs, if _____ properly, can assist the police in many ways.

A. training       B. trained            C. being trained    D. to be trained

30、---- Can’t you _____ a bit? I wouldn’t like to miss a single minute of the concert?

---- Don’t worry. We’ll get there in time.

A. sweep up       B. take up            C. speed up       D. make up

29、_____ money, the young man couldn’t afford to buy a new car.

A. Lacks          B. To lack            C. Lacked         D. lacking

28、At the entrance all passengers _____ to show their tickets.

A. required       B. are required       C. require        D. are requiring

27、Rather than spend a lot of money repairing the car seriously _____ in the accident, he preferred to buy a new one.

A. injured        B. damaged           C. destroyed       D. wounded

26、At the conference, political leaders from many countries promised to work   together to defend the world _____ terrorism and other threats.

A. for            B. against           C. beyond          D. without

25、Seldom ______ breakfast when I was a middle school student.

A. had I          B. I had             C. did I have      D. I did have

23、Martin Cooper, a US researcher, was considered           the first cell phone.

A．invented           B．to invent          C．having invented              D．to have invented