完形填空。 A certain student passed all his examinations. Then he went to college to 1 his studies. There he wrote down his 2 for a course (课程) in English, but after the first 3 , he didn't go to it any more. The English lecture r(讲师) 4 this student was always absent (缺席的) and thought he had 5 to another course, so he was 6 when he saw the boy's name on the list of students who wanted to take the English 7 at the end of this year. The lecturer had 8 a difficult paper, which followed his 9 closely, and he was eager (热切的) to see 10 this student would answer the questions. He 11 the boy's answers would be very bad, but when the test papers 12 him and he examined them 13 , he was able to find only one small mistake in them. As this surprised him greatly, he 14 the paper repeatedly but still couldn't find more than one mistake, so he 15 for the student to question him about it. When he came and sat down, the lecturer asked him, 'I 16 you came to my first lecture and you've been absent from all the others. But I've examined your 17 carefully and I've found only one small mistake in it. I'm curious (好奇的) to know your 18 .' 'I'm very 19 about that mistake,' answered the student. 'After the examination, I 20 what I should have done. I would not have made that mistake if I had not been confused by your first lecture.' (     )1. A. value (     )2. A. questions (     )3. A. week (     )4. A. astonished (     )5. A. led (     )6. A. surprised (     )7. A. test (     )8. A. discovered (     )9. A. ideas (     )10. A. when (     )11. A. hoped (     )12. A. showed (     )13. A. carelessly (     )14. A. enjoyed (     )15. A. cared (     )16. A. promise (     )17. A. lessons (     )18. A. wisdom (     )19. A. glad (     )20. A. realized B. continue B. advice B. lecture(讲座) B. regretted B. devoted B. angry B. subject B. prepared B. senses B. what B. proved B. gave B. carefully B. kept B. called B. know B. paper B. experience B. proud B. understood C. improve C. problems C. meet C. noticed C. gone C. pleased C. note C. gone C. lectures C. why C. expected C. handed C. slowly C. did C. sent C. advise C. notebook C. method C. content C. remembered D. begin D. name D. sight D. believed D. changed D. unhappy D. course D. found D. texts D. how D. wished D. reached D. happily D. examined D. looked D. guess D. exercises D. explanation D. sorry D. suffered