高考题型提能练(八) Unit 8
阅读下面材料，在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式
Are you facing a situation that looks impossible to fix?
In 1969，the pollution was terrible along the Cuyahoga River near Cleveland，Ohio.It 1 ，years later，this river is one of 3 most outstanding examples of environmental cleanup.(be) unimaginable that it could ever be cleaned up.The river was so polluted that it 2 (actual) caught fire and burned.Now
