完形填空。 One day a farmer's donkey fell down into a well. The animal cried 1 for hours as the farmer tried to think out 2 to do. Finally, he decided the animal was 3 , and the well needed to be 4 up anyway; it just wasn't 5 it to save the donkey. He invited all his 6 to come over and help him. They all grabbed  (握起) a shovel (铁锹) and began to shovel 7 into the well. At first, the donkey 8 what was happening and cried horribly (惊恐的,害怕的). Then, to everyone's 9 he quieted down. A few shovel loads later, the farmer finally looked 10 the well. He was surprised at what he saw. With each shovel of dirt that hit his back, the donkey was doing something amazing. As the farmer's neighbours 11 to shovel dirt on top of the animal, he would 12 it off and take a step up. Pretty soon, everyone was amazed as the donkey stepped up over the edge of the well and happily ran off! Life is going to shovel dirt on you, all kinds of dirt. If you want to get out of the well, the 13 is to shake it off and take a step up. Each of our troubles is a stepping stone (垫脚石). We can get out of the 14 wells just by not stopping, never 15 ! Shake it off and take a step up. (     )1. A. sadly (     )2. A. how (     )3. A. painful (     )4. A. drowned (     )5. A. important (     )6. A. neighbours (     )7. A. dust (     )8. A. doubted (     )9. A. sorrow (     )10. A. down (     )11. A. pretended (     )12. A. wash (     )13. A. trick (     )14. A. longest (     )15. A. having fun B. happily B. what B. old B. solved B. possible B. relatives B. dirt B. recognized B. joy B. around B. continued B. blow B. trap B. largest B. watching over C. excitedly C. that C. rare C. covered C. necessary C. friends C. waste C. realized C. fear C. through C. stopped C. wipe C. trouble C. deepest C. giving up D. fiercely D. which D. powerful D. emptied D. worth D. family D. soil D. admitted D. amazement D. over D. determined D. shake D. tradition D. widest D. dying out