完形填空。 Three years ago, I had a job in a retail store (零售店). I 1 to talk to everybody and know what was going on in their 2 . I remember a girl who started 3 there a few months after me. We seldom talked but we always 4 each other and smiled. She always smiled in a really happy way 5 one day when we got to work in the 6 department. She smiled as if she was the 7 girl in the world. I went up to her and asked, 'What's wrong with you?' She answered, 'Why?' I said, 'I could feel you're very 8 , but you're always trying to 9 it.' Her mouth just dropped as if I had 10 her deepest secret, so we started talking. She told me 11 she was feeling unhappy and why she was trying to 12 that nothing was wrong. Time went by and we became good friends. She'd always tell me I had 13 her life in so many ways. Today that girl is one of my best 14 . I really don't know what I would do 15 her. She has been there for me in every 16 way a friend could be. What I'm trying to say is that you never know 17 you're helping yourself. I helped this girl never knowing that at the same time I was helping myself by finding a __18 _ friend. So the next time you see a 19 and he needs someone who will 20 to him, wait and let him say what he wants to say. You never know, you might just end up helping yourself. (     )1. A. managed (     )2. A. lives (     )3. A. shopping (     )4. A. assisted (     )5. A. though (     )6. A. similar (     )7. A. quietest (     )8. A. sad (     )9. A. keep (     )10. A. caught (     )11. A. when (     )12. A. pretend (     )13. A. protected (     )14. A. customers (     )15. A. without (     )16. A. simple (     )17. A. before (     )18. A. truthful (     )19. A. stranger (     )20. A. belong B. intended B. jobs B. talking B. looked at B. since B. nearby B. happiest B. angry B. stop B. discovered B. how B. become B. recovered B. friends B. for B. possible B. since B. useful B. worker B. refer C. remembered C. studies C. going C. realized C. until C. same C. busiest C. happy C. hide C. controlled C. why C. make C. supported C. neighbors C. upon C. strange C. because C. hopeful C. passenger C. listen D. liked D. marriages D. working D. stared at D. unless D. different D. luckiest D. surprised D. show D. checked D. what D. admit D. changed D. classmates D. with D. perfect D. when D. careful D. visitor D. turn