40. Victor apologized for _____ to inform me of the change in the plan.

　　 A. his being not able　　 B. him not to be able

　　 C. his not being able　　 D. him to be not able

39. The pilot asked all the passengers on board to remain ________ as the plane was making a landing.

　　 A. seat　 B. seating　 C. seated　 D. to be seating

38. The other day, my brother drove his car down the street at ________ I thought was a dangerous speed.

　　 A. as　　　　 B. which　　　　 C. what　　 D. that

37. It was only with the help of the local guide ________.

　　 A. was the mountain climber rescued

　　 B. that the mountain climber was rescued

　　 C. when the mountain climber was rescued

　　 D. then the mountain climber was rescued

36. A fast food restaurant is the place ________ , just as the name suggests, eating is performed quickly.

　　 A. which　 B. where　 C. there　　 D. what

35.　 I'm going to the supermarket this afternoon.　 Do you have anything ________?

　　　 A. to be buying　　　　　　 B. to buy

　　　 C. for buying　　　　　　　 D. bought

34. ________, some famous scientists have the qualities of being both careful and careless.

　　 A. Strangely enough　　　　 B. Enough strangely

　　 C. Strange enough　　　　　 D. Enough strange

33. Although he has lived with us for years, he ________ us much impression.

　　 A. hadn't left　　　　　　　 B. didn't leave

　　 C. doesn't leave　　　　　 　D. hasn't left

32. I have worked with him for some time and have found that he is ________ than John.

　　 A. more efficiency a worker

　　 B. a more efficient worker

　　 C. more an efficient worker

　　 D. a worker more efficiently

31. There is no light in the dormitory. They must have gone to the lecture, ________?

　　 A. didn't they　　　　　　　 B. don't they

　　 C. mustn't they　　　　　　 D. haven't they