56.C
57.B
58.D
59.B
60.A
61.C
62.B
63.D
64.B
65.D
III
66.D
67.C
68.B
69.A
70.A
I
71.Petrol prices are cheaper and cheaper.
72. It was the kind of accident for which nobody was really to blame.
73. Paul admitted that it was his mistake and apologized.
74. One of the guests is thought to have stolen the jewels.
75. Robert has been out of un joyness for two years.
76. Hardly had the teacher returned home when he started to write the lesson plan.
