阅读理解。 Long long ago, human beings used to walk barefoot. A king happened to travel 1 into the countryside. He was greatly troubled by the 2 roads where gravel (砾石) and broken stones pricked (使刺痛) and numbed (使麻木) his 3 . When he returned to his palace he issued an order that all the roads be 4 with cattle hide (牛皮). He thought it was beneficial not only to 5 but also to his people and hoped 6 would no longer be a painful thing But 7 all the cattle in the kingdom were killed there 8 not be enough hide to get the work done. Evidently it was a stupid 9 . As it was an imperial order people could do nothing but shake their heads and 10 . At this juncture a clever servant in the palace 11 to make a suggestion. 'Your Majesty, why don't take an easier way? You don't have to mobilize (调动) so many people, to have so many oxen killed, nor so much money 12 . What you have to do is simply to cover each of your feet with a piece of hide.' Surprised and 13 , the king immediately changed his mind and adopted the 14 . This is said to be the origin of using 15 to make shoes. Though it sounds 16 and strange, it inspires us to think. It is much easier to change oneself than to change the world. 17 it will be much better for one to change oneself before one 18 an attempt to change the outer world. Why don't try to put yourself on the 19 of the person you deal with? You will find it easier to solve a problem 20 you change your way of thinking. (     )1. A. much (     )2. A. smooth (     )3. A. body (     )4. A. crowded (     )5. A. others (     )6. A. walking (     )7. A. as well (     )8. A. would (     )9. A. comment (     )10. A. sigh (     )11. A. wanted (     )12. A. wasted (     )13. A. moved (     )14. A. decision (     )15. A. leather (     )16. A. odd (     )17. A. Or (     )18. A. makes (     )19. A. direction (     )20. A. before B. near B. rough B. arms B. filled B. himself B. swimming B. even if B. should B. chance B. sign B. ventured B. borrowed B. excited B. plan B. silk B. funny B. But B. tries B. situation B. if C. far C. long C. feet C. covered C. them C. singing C. as long as C. must C. attempt C. cheer C. planned C. saved C. pleased C. suggestion C. plastic C. amusing C. So C. takes C. occasion C. while D. a lot D. busy D. legs D. put D. themselves D. shopping D. when D. may D. opinion D. weep D. hoped D. loaned D. bored D. measure D. cloth D. surprising D. However D. gives D. position D. until