Are you facing a situation that looks impossible to fix?

    In 1969,the pollution was terrible along the Cuyahoga River Cleveland,Ohio.It____(be) unimaginable that it could ever be cleaned up.The river was so polluted that it____(actual) caught fire and burned.Now,years later,this river is one of____most outstanding（杰出的）examples of environmental cleanup.

    But the river wasn't changed in a few days____even a few months.It took years of work ____(reduce) the industrial pollution and clean the water.Finally,that hard work paid off and now the water in the river is____(clean) than ever.

    Maybe you are facing an impossible situation.Maybe you leave a habit____．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 there are____(amaze) stories of instant transformation,for most of us the____(change) are gradual and require a lot of effort and work,like cleaning up a polluted river.Just be____(patience).