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1.Some people believe that since oil is scarce, the ________ of the motor industry is uncertain. A) terminal B) benefit C) fate D) estimate 2.To speed up the ________ of letters, the Post Office introduced automatic sorting. A) treatment B) delivery C) transmission D) departure 3.These overseas students show great ________ for learning a new language. A) enthusiasm B) authority C) convention D) faith 4.The defense lawyer was questioning the old man who was one of the ________ of the murder committed last month. A) observers B) witnesses C) audiences D) viewers 5.Politically these nations tend to be ________, with very high birth rates but poor education and very low levels of literacy. A) unstable B) reluctant C) rational D) unsteady 从这期开始每次给大家留一点作业,建议准备参加六月份考试的同学练习一下,主要是对以往节目内容的复习. 1.翻译：After working all day, ________________ . | 
