完形填空。 I used to hate being called upon in class mainly because I didn't like attention drawn to myself. And 1 otherwise assigned (指定) a seat by the teacher, I always 2 to sit at the back of the classroom. All this 3 after I joined a sports team. It began when a teacher suggested I try out for the basketball team. At first I thought it was a crazy 4 because I didn't have a good sense of balance, nor did I have the 5 to keep pace with the others on the team and they would tease me. But for the teacher who kept insisting on my ' 6 for  it', I wouldn't have decided to give a try. Getting up the courage to go to the tryouts was only the 7 of it! When I first started 8 the practice sessions, I didn't even know the rules of the game, much 9 what I was doing. Sometimes I'd get 10 and take a shot at the wrong direction-which made me feel really stupid. 11 , I wasn't the only one 'new' at the game, so I decided to 12 on learning the game, do my best at each practice session, and not be too hard on myself for the things I didn't 13 'just yet'. I practiced and practiced. Soon I knew the 14 and the 'moves'. Being part of a team was fun and motivating. Very soon the competitive 15 in me was winning over my lack of confidence. With time, I learned how to play and made friends in the 16 - friends who respected my efforts to work hard and be a team player. I never had so much fun! With my 17 self-confidence comes more praise from teachers and classmates. I have gone from '18' in the back of the classroom and not wanting to call attention to myself, 19 raising my hand- even when I sometimes wasn't and not 100 percent 20 I had the right answer. Now I have more self-confidence in myself. (     )1. A. as (     )2. A. chose (     )3. A. continued (     )4. A. saying (     )5. A. right (     )6. A. looking (     )7. A. point (     )8. A. attending (     )9. A. worse (     )10. A. committed (     )11. A. Interestingly (     )12. A. try (     )13. A. want (     )14. A. steps (     )15. A. part (     )16. A. movement (     )17. A. improved (     )18. A. dreaming (     )19. A. to (     )20. A. lucky B. unless B. agreed B. settled B. plan B. ability B. going B. rest B. preparing B. later B. motivated B. Obviously B. act B. do B. rules B. roles B. operation B. expressed B. playing B. for B. happy C. until C. meant C. changed C.belief C. chance C. cheering C. half C. enjoying C. less C. embarrassed C. Fortunately C. rely C. know C. orders C. mind C. process C. preserved C. hiding C. with C. satisfied D. though D. hoped D. started D. idea D.patience D. applying D. basis D. watching D. further D. confused D. hopefully D. focus D. support D. games D. value D. situation D. recognized D. relaxing D. by D. sure