32. It was unbelievable that the fans waited outside the gym for three hours just _____ a look at the sports stars.

A. had　　 B. having　　 C. to have　　 D. have

31. _______ into use in April 2000, the hotline was meant for residents reporting water and heating supply breakdowns.

A. Put　　　 B. Putting　　　 C. Having put　　 D. Being put

30. He got well-prepared for the job interview, for he couldn’t risk _______ the good opportunity.

A. to lose　　 B. losing　　 C. to be lost　　 D. being lost

29. I don’t want ______ like I’m speaking ill of anybody, but the manager’s plan is unfair.

A. to sound　　 B. to be sounded　　 C. sounding　　 D. to have sounded

28. You should understand the traffic rule by now. You’ve had it ______ often enough.

A. explaining　　 B. to explain　　 C. explain　　 D. explained

27. I couldn’t do my homework with all that noise ________.

A. going on　　 B. goes on　　　 C. went on　　　 D. to go on

26. When asked by the police, he said that he remembered _______ at the party, but not _______.

A. to arrive; leaving　　　　　 B. to arrive; to leave

C. arriving; leaving　　　　　 D. arriving; to leave

25. It’s necessary to be prepared for a job interview. _______ the answers ready will be of great help.

A. To have had　　 B. Having had　　 C. Have　　 D. Having

24. “You can’t catch me!” Janet shouted, ______ away.

A. run　　 B. running　　 C. to run　　 D. ran

23. The storm left, _______ a lot of damage to this area.

A. caused　　　 B. to have caused　 C. to cause　 D. having caused