64. He belonged ______ the working class and was able to take apart machines.
65. I’d like to do something in reward _______ her kindness.
66. I don’t think much ______ these so-called improvements to the town centre.
67. After a long search _____ the murder weapon, the police found a knife.
68. In much of the animal world, night is the time set ______ for sleep — pure and simple.
69. Buried _____ his books, he didn’t know it was raining outside.
70. They didn’t know how to put an end _______ the quarrel.
71. I don’t know what it was in the novel that made him burst _______ tears.
72. The whole city lay _____ ruins after the earthquake.
64. to 65. for 66. of 67. for 68. aside 69. in 70. to 71. into 72. in