56. A. too much, much too 　B. too many, too much 　C, too much

55. A. lost 　　　B. lust/missed 　　C. miss　　 D. lost, miss

54. A. dropped 　　　　　B. fell

53. A. as　　　　 B. as 　　　　C. like　　　 　D. like

52. A. sleep 　　B. sleepy, sleep 　　　C. asleep

51. A. interested, interesting　　 B. interest, interest

50. A. takes, spend 　B. cost, spent 　C. paid, spent 　D. spend

48. A. go to bed B. fell asleep/went to sleep C. is asleep

Key 6: 　49. A. Sorry B. Pardon C. Excuse me D. pardon

47. A. So　　　　 B. Nor

46. A. sound B. voice, voice C. noise