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.
答案:64. to 65. for 66. of 67. for 68. aside 69. in 70. to 71. into 72. in