Set 4 answer key

51. extent
52. what
53. much
54. diseases
55. does
56. prevention
57. think
58. over
59. fit
60. off
61. Others
62. bad
63. system
64. to
65. late

66. Instead of helping her mother with the chores, Michelle went out with her friends.
67. However hard Celine worked, she could not get good marks.
68. Lisa wished her neighbour would stop practising the violin.
69. I have not watched a good movie for a long time.
70. Miss Tan asked if Bryan had been present at the award ceremony the previous day.

71. Mr Carr had called her for a meeting.
72. He was caught red-handed by Mr Carr.
73. He needed money to go around with some boys.
74. The word is "proprietor".
75. He had expected his mother to be very angry but she was very calm.
76. Mr Carr had intended to call the police.
77. Alfred felt uncomfortable.
78. Alfred was working in Mr Carr's shop.
79. The sentence is "It takes some of them a long time to get any sense."
80. Mr Carr met Alfred's mother and allowed him to turn over a new leaf.