完形填空。 Many years ago, a man 1 Wu taught King Wang how to ride horses and how to drive  a chariot (马拉战车). 2 some time the king started to race against Wu. But no matter how many 3 the king raced against Wu, Wu always won. The king was 4 and said to Wu,  “You have taught me how to ride and how to drive a chariot. But  I don’t think you have taught me everything about 5 . ” “I have taught you 6 I know” 7 Wu. “But you have not learned everything.  The 8 thing about driving a chariot is to think of the horses.  The driver of the chariot and the horses should work together. You can then go very 9 and drive for long distances. But your problem is this:   When you are behind me, you want to 10 with me. And when you are 11 me, you are afraid that I will catch up with you. 12 whether you are in front of me or behind me, you are thinking of me. You are not thinking of your 13 .If you want to  win,  you must 14 thinking of me. You 15 think only of your horses. ” (     ) 1. A. calls (     ) 2. A. In (     ) 3. A. times (     ) 4. A. happy (     ) 5. A. playing (     ) 6. A. everything (     ) 7. A. asked (     ) 8. A. dangerous (     ) 9. A. slowly (     ) 10.A. catch up (     ) 11.A. beside (     ) 12.A. So (     ) 13.A. cows (     ) 14.A. start (     ) 15.A. mustn't B. names B. After B. days B. glad B. racing B. something B. told B. newer B. soon B. do B. in front of B. But B. dogs B. stop B. may C. called C. Since C. weeks C. pleased C. running C. anything C. answered C. beautiful C. fast C. talk C. near C. Or C. pigs C. keep C. must D. name D. Before D. months D. unhappy D. working D. nothing D. spoke D. most important D. slow D. help D. next to D. And D. horses D. begin D. can