题目内容：
语法填空：根据上下文或者用括号内所给单词的正确形式填空，根据材料回答题One day a farmer’s donkey fell down into a well. The animal cried piteously ___1___ hours as the farmer tried to figure out what to do. Finally, he decided the animal was old, and the well needed ___2_______ (cover) up anyway; it just wasn't worth ___3____ to save the donkey.
He invited all his neighbors to come over and help him. They all grabbed a shovel（铲） and began to shovel dirt into the well. At first, the donkey realized ___4___ was happening and cried horribly. Then, to everyone’s amazement, he quieted down. A few shovel loads later, the farmer finally looked down the well. He _5_______ (astonish) at what he saw. With each shovel of dirt __6____ hit his back, the donkey was doing something _7______ (amaze). He would shake it off and take a step up.
__8____ the farmer’s neighbors continued to shovel dirt on top of the animal; he would shake it off and take a step up. Pretty soon, everyone was amazed as the donkey stepped up over __9____ edge of the well and happily ran off!
Each of our troubles is a steppingstone. We can get out of the deepest wells just ___10___ not giving up! Shake it off and take a step up.
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