高中英语语法填空分类强化训练之无提示词类（含答案）

高中英语语法填空分类强化训练之无提示词类（含答案） 1.     Are you facing a situation that looks impossible to fix?      In 1969, the pollution was terrible along the Cuyahoga River near Cleveland, Ohio. It①__________(be) unimaginable that it could ever be cleaned up. The river was so polluted that it②__________(actual) caught fire and burned. Now, years later, this river is one of③__________ most outstanding examples of environmental cleanup.       But the river wasn’t changed in a few days④__________ seven a few months. It took years of work⑤__________(reduce) the industrial pollution and clean the water. Finally, that hard work paid off and now the water in the river is⑥__________(clean) than ever.      Maybe you are facing an impossible situation. Maybe you have a habit⑦__________ is driving your family crazy. Possibly you drink too much or don't know how to control your credit card use. When you face such an impossible situation, don't you want a quick fix and something to change immediately?      While