完形填空。 A student was one day taking a walk with a professor. He was _ _1 __   called the students' friend, for his kindness to those who waited on his  _ _2 ___. As they went along, they saw lying in the path a pair of old shoes, which they supposed to belong to a poor man who was employed in a field close by, and who had __ 3_ __ finished his day's work. The student turned to the professor, saying: 'Let us play the man a__ 4 __: we will hide his shoes, and wait to see his___ 5 ___when he cannot find them.'  'My young friend,' answered the professor, 'we_ _6 ___ never amuse ourselves __ _7_ __ the poor. But you are rich, and may give yourself a much greater__ 8 ___ by means of the poor man. Put a coin into each shoe, and _ _9_ _ watch how the discovery affects him.' The student did so, and they both placed themselves behind the bushes close by. The poor man soon finished his work, and came 10 the field to the path where he had left his coat and shoes. While putting on his coat he __ 11_ __ his foot into one of his shoes; but feeling something _ _12_ __, and then he found the coin. __ 13 ___and wonder were seen upon his face. He gazed upon the coin, _ _14_ _ it round, and looked at it again and again. He then looked around but no person was to be seen. And his surprise was __ 15 ___ on finding the other coin. His _ _16 __ overcame him; he fell upon his knees, _ _17 __ to heaven and uttered aloud a passionate thanksgiving, _ _18_ _ he spoke of his wife, sick and helpless, and his children without bread, whom the _ _19_ _ money, from some unknown hand, would save from dying. The student stood there deeply affected, and his eyes filled with tears, 'I feel now the _ _20 __ of those words, which I never understood before: 'It is more blessed to give than to receive.'' (     ) 1. A. normally (     ) 2. A. directions (     ) 3. A. eventually (     ) 4. A. trick (     ) 5. A. relief (     ) 6. A. might (     ) 7. A. at the risk of (     ) 8. A. sadness (     ) 9. A. then (     )10. A. across (     )11. A. devoted (     )12. A. hard (     )13. A. Amusement (     )14. A. showed (     )15. A. decreased (     )16. A. discovery (     )17. A. looking up (     )18. A. when (     )19. A. gratefully (     )20. A. power B. especially B. instructions B. hardly B. game B. confusion B. would B. at the sight of B. anger B. now B. through B. settled B. gentle B. Astonishment B. watched B. raised B. feeling B. reaching out B. which B. timely B. meaning C. surprisingly C. introductions C. nearly C. role C. curiosity C. should C. at the expense of C. surprise C. from time to time C. along C. skipped C. dirty C. Judgment C. turned C. faded C. action C. looking out C. what C. warmly C. truth D. commonly D. invitations D. already D. part D. sorrow D could D. at the mercy of D. pleasure D often D. over D. slipped D. tough D. Argument D. took D. doubled D. belief D. turning up D. in which D. totally D. effect