51. A. date B. page C. matters D. problems
50. A. something B. anything C. everything D. nothing
49. A. copied B. presented C. listed D. printed
48. A. mistook B. posted C. accepted D. received
47. A. schedule B. routine C. habits D. customs
46. A. created B. explained C. spared D. shared
45. A. rough B. severe C. tough D. urgent
44. A. prayer B. performer C. inspector D. reminder
43. A. unanswered B.unasked C. unexpected D. unwelcome
42. A. should B. might C. would D. had to