33. So difficult 　　　　　　it to work out the problem that I decided to ask Tom for advice.

　　 A. I did find　　　　　 B. did I find　　　　　 C. I have found　　　 D. have I found

32. The young girl sitting next to me on the plane was very nervous. She 　　　　　　before.

　　 A. hasn't flown　 　　　B. didn't fly　　　　　 C. hadn't flown　　　 D. wasn't flying

31. "You can't have this football back 　　　　　　　you promise not to kick it at my cat again," the

　　 old man said firmly.

　　 A. because　　　 　　　　B. since　　　　　　　 C. when　　　　　 D. until

30. 　　　　　this cake, you'll need 2 eggs, 175 g sugar and 175 g flour.

　　 A. Having made　　　　 B. Make　　　　　 C. To make　　　　　　 D. Making

29. No matter how frequently 　　　　　, the works of Beethoven still attract people all over the world.

　　 A. performed　　　　 B. performing　　　　 C. to be performed　　 　D. being performed

28. Much of the power of the trade unions has been lost 　　　　　, their political influence should be very great.

　　 A. As a result　　　　　 B. As usual　　　　　　 　C. Even so　　　　　 D. So far

27. Sarah had her washing machine repaired the day before yesterday, 　　　　　　she?

　　 A. had　　　　　　 　　B. did　　　　　　　　 C. hadn't　　　　　 D. didn't

26. Jenny was very sad over the loss of the photos she had shot at Canada, 　　　　　this was a memory she especially treasured.

　　 A. as　　　　　　　　 B. if　　　　　　　　 C. when　　　　　　 D. where

25. I was still sleeping when the fire 　　　　　, and then it spread quickly.

　　 A. broke out　　　　　 B. put out　　　　　　　 C. came out　　　　　 D. got out

24. The traffic lights 　　　　　　green and I pulled away.

　　 A. came　　　 　　　　B. grew　　　　　　　 C. got　　　　　　　 D. went