精选优质文档-倾情为你奉上目录Lesson 1 A Puma at largePumas are large, cat-like animals which are found in America. When reports came intoLondon Zoo that a wild puma had been 1_ forty-five miles south of London, they were nottaken 2_. However, as the evidence began to accumulate, experts from the Zoo felt obligedto 3_, for the descriptions given by people who claimed to have seen the puma wereextraordinarily 4_.T