35. The present financial crisis has put the world economy in a difficult 　　　　.　

A. occasion　 B. case C. background　 D. situation

34. 　　　　　but fools will believe what he said.　

A. None　 B. Nothing　 C. Anything D. Everything

33. A senior firefighter said it was 　　　　　that the fire, which broke out at midnight, was caused by someone on purpose.　

A. possibly　 B. likely　 C. probably D. obviously

32. As to the question of whether we will sell our house or who we shall sell the house to, you　 　　　　　have an answer by tomorrow.　

A. will　 B. shall　　 C. could　　 D. must

31. - Learning a language isn't easy. It takes time.　

-I agree. 　　　　. There's no short cut.

A. All roads lead to Rome　　 B. Rome wasn't built in a day

C. Practice makes perfect　　　　 D. Slow but sure wins the race

30. This is something really invisible, 　　　　?　

A. is it B. is this　 C. isn't this　 D. isn't it

29. This time next week, that famous singing group 　　　　　us a great performance in the stadium.　

A. would give　　 B. will have given　 C. will be giving　 D. shall give