41. During her study in Massachusetts Institute of Technology she has got the degree _____ PhD, and it is a degree ______ chemistry.

40. Let’s put our heads together and decide _____ a plan of action.

39. Once everyone is _____ his life, he will instinctively(本能) find every possible way _____.

38. She is crazy _____ the film star, while her brother is crazy _____ surfing.

37. The boy is curious _____ everything. I am sure he is very clever.

36. It is said that the step-mother is very cruel _____ the children.

35. Don’t sit _____the corner of the desk. That’s impolite for a student.

34. Her clothes are very bright _____ colour.

33. The little boy is very clever _____ every subject.

32. When the Chinese delegation arrived at Vienna airport, they were received _____ cheers.