Once we climbed a very high mountain it was so challenging for me because l was only ten years old. D{#blank#}1{#/blank#} the first few hours of climbing, I enjoyed the flowers and trees, and the birds singing. But at time passed. I got a pain in both of my legs. I w{#blank#}2{#/blank#}to give up climbing, but my father said to me. "You can always see a beautiful sky at the top of the mountain, but you can't see it b{#blank#}3{#/blank#}you reach the top. Only there can you see all of the nice things, which is just you're your life."

    At that time, l was too young to understand his w{#blank#}4{#/blank#}. But later after that I got to know the meaning of hope in life. I found m{#blank#}5{#/blank#}standing at the top of the mountain, and the sky was as clear as crystal.

    Are you facing a situation that looks impossible to fix?

    In 1969, the pollution was terrible{#blank#}1{#/blank#}（沿着） a river in Ohio. People thought it impossible to{#blank#}2{#/blank#}（被清理）up. The river was so polluted that it caught fire and{#blank#}3{#/blank#}（燃烧）. Now, years later, this river is one of{#blank#}4{#/blank#} （杰出）examples in the world for environment. But the river wasn't changed in a few days or even a few{#blank#}5{#/blank#}（月份）. It took years of work to {#blank#}6{#/blank#}（减少）the pollution.

    Maybe you are facing an impossible situation. Maybe you have {#blank#}7{#/blank#}（习惯）that are making your family crazy. Possibly you always fail your tests and you never work{#blank#}8{#/blank#}（努力） than before. Or you don't know how to control{#blank#}9{#/blank#}（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 {#blank#}10{#/blank#}（大多数的）of us changes are little by little and need a lot of effort and work. Just be patient.