完形填空。 I started to love running at a young age. I loved to race my father and my sister around the backyard. I wished I could run in the Olympics and win lots of medals. One day my mother saw _ 1 for a race in a newspaper.'Would you be interested in _2 part in this race?' she asked me, pointing to the advertisement. 'Yes, of course,'I answered. I 3 the next few days practising for my big race.My sister set up a table in the backyard so she could 4 me water and time. On the day of the race,just before the race began, my 5 said to me,'Don't use up all your energy (力气) at the beginning of the race. You need to have energy 6 you can run much faster at the end.' The race 7 . Following Dad's words,I didn't run as fast as I could.Then the other runners started passing me, which made me feel 8 . I began to feel tired,and I started slowing down and breathing 9 Just at that moment I heard,'_ 10 , Kelly! You can do it !  Don't give up. Keep running ! ' Out of the corner of my eye, I saw Dad running beside me around the outside of the track. I took a 11 breath and tried my best to go on running. I didn't win the race.I came fifth,but I felt like a 12 . I had done my best, and I hadn't given up. Later, as I thought about the race,I felt thank-ful that my dad had _ 13 left my side. He always encourages me when I 14 giving up. He runs alongside me through my life. I'll 15 my dad's words forever,'Never give up. You can be a winner, even if you lose.' (     )1. A. a story (     )2. A. choosing (     )3. A. spent (     )4. A. buy (     )5. A. teacher (     )6. A. because (     )7. A. began (     )8. A. proud (     )9. A. easier (     )10. A. Come down (     )11. A. deep (     )12. A. player (     )13. A. already (     )14. A. look like (     )15. A. forget B. a report B. entering B. cost B. carry B. mum B. so B. finished B. happy B. harder B. Come on B. easy B. winner B. yet B. stop B. remember C. a piece of news C. taking C. paid C. fill C. dad C. since C. reached C. nervous C. shorter C. Come out C. free C. soldier C. once C. feel like C. talk D. an advertisement D. watching D. took D. offer D. sister D. but D. stopped D. hopeful D. Ionger D. Come back D. lazy D. runner D. never D.  enjoy D. write