48. - Have you finished the maths problem?

- Not yet, because I find it difficult.

A. in working out B. working out C. to work it out D. to work out

47. We should consider it a duty to serve the Chinese people heart and soul.

A. to be B. be C. as D. Either A or C

46. Don't you like to have your room clean and tidy?

A. to look B. looked C. looking D. look

45. Louder and make yourself.

A. Speaking; hearing B. Speaking; heard

C. To speak; hear D. Speak; heard

44. He had never spent a ____ day.

A. more worry B. most worrying C. more worrying D. most worried

43. ____ in a poor peasant family, the boy was unable to go to school.

A. Being born B. Born C. Having been born D. Being proved

42. I'm going to have my radio ____.

A. to fix B. fixed C. fix D. fixing

41. What's the language ____ in Germany?

A. speaking B. spoken C. be spoken D. to speak

40. ____ from his accent, he must be from Shanghai.

A. Judge B. Judging C. Judged D. Being judged

39. With the work ____, Mr. Lin went out for a swim.

A. having B. done C. doing D. being done