Are you facing a situation that looks impossible to fix?

    In 1969, the pollution was terrible（沿着） a river in Ohio. People thought it impossible to（被清理）up. The river was so polluted that it caught fire and（燃烧）. Now, years later, this river is one of （杰出）examples in the world for environment. But the river wasn't changed in a few days or even a few（月份）. It took years of work to （减少）the pollution.

    Maybe you are facing an impossible situation. Maybe you have （习惯）that are making your family crazy. Possibly you always fail your tests and you never work（努力） than before. Or you don't know how to control（你自己）so as not to be late for school again. When you face them, don't you want a quick fix and something to change immediately?

    For （大多数的）of us changes are little by little and need a lot of effort and work. Just be patient.