56. pin sth to sth…　　　　　 　

55.have a talent for

54. be filled with sorrow　　　　　　　

53. serve as

52. make sth out of……　　 　　　

51. be forced to do sth

49. an educated person　　　　　　　　

48. add up to

47. have prejudice against sb.　

46. set sb free from…