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约2230字。
　　《Inventors and inventions》同步练习
　　完形填空（共20小题；每小题1.5分，满分30分）
　　阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A，B，C和D）中，选出最佳选项。
　　“One of the most difficult things to give away is kindness, for it is usually returned." - Mark Ortman
　　With the s in town, there was not a room to be rented anywhere. When an elderly couple walked in out of the 1 rain, the desk clerk 2 they would never find a place to stay. In an act of 3 , he 4 them the only bed in town, his own bed.
　　The couple at first refused, but through 5 and kindness, he persuaded the couple to 6 his offer. When they 7 the next morning, the elderly gentleman said to the desk clerot;You are 8 person who should be managing the best hotel in the United States. Maybe 9 I’ll build one." They chuckled(吃吃的笑) about that and the elderly couple left.
　　The 10 and the elderly couple were forgotten by the desk clerk 11 two years 12 when he received a letter from the old man 13 he e up to New York and see him. There was a round-trip airline 14 with the letter.
　　The desk clerght, "Why not?" and took the 15 to New York. The old man met him at the airport and 16 took him to a construction site to show him a huge castle-licture 17 there.
　　"That," declared the old man, "is the hotel I’m building for you to 18 !"
　　The old man was William Waldorf Astor, and the hotel would 19 be known as the Waldorf-Astoria. The former desk clerk, George C. Boldt, 20 the first manager.
　　1. A. freezing B. cold C. warm D. hot
　　2. A. knew B. realized C. recognized D. admired
　　3. A. friendship B. respect C. kindness D. mercy
　　4. A. supplied B. offered C. gave D. provided
　　5. A. cause B. thought C. argument D. reason
　　6. A. receive B. get C. accept D. find
　　7. A. chect B. loot C. went out D. turned out
　　8. A. the kind of B. the next of C. the kind D. the clever
　　9. A. some time B. sometimes etime D. someday
　　10. A. affair B. matter C. incident D. thing
　　11. A. until B. before C. when D. as
　　12. A. then B. or so C. later D. after
　　13. A. requiring B. requesting anding D. suggesting
　　14. A. money B. ticket etable D. port
　　15. A. ride B. lift C. voyage D. flight
　　16. A. personally B. attentively mediately D. eagerly
　　17. A. being built B. being made C. being prepared D. being pleted
　　18. A. count B. possess C. control D. manage
　　19. A. that way B. so C. therefore D. soon
　　20. A. turned B. bee C. designed D. practised