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of them will live 12 than before. 13 will be much smaller and more useful, and there will be at least one in every home. And puter studies will be one of the important subjects at 14 . People will work fewer hours than they did in the 21th century, and they will have more free time for sports, 15 TV and traveling. Traveling will be more 16 . And many more people will go to other countries for holidays. More land will be used for building new towns and houses. Then there will be less room for cows and sheep, so 17 will be more expensive. Maybe no one will eat it every day, 18 they eat more vegetables and fruit. Maybe people will be healthier. Work in the future will be 19 , too. Dangerous and hard work will be done by robots(機器人 ). 20 of this, many people will not have enough work to do. This will be a problem. ( )11. A. making B. growing C. running D. doing ( )12. A. 1onger B. shorter C. faster D. taller ( )13. A. Trains B. Cars C. Computers D. Houses ( )14. A. factory B. hospital C. farm D. school ( )15. A. watching B. seeing C. 1ooking D. buying ( )16. A. interesting B. convenient(方便 ) C. expensive D. difficult ( )17. A. fruit B. milk C. meat D. bread ( )18. A. instead B. sometimes C. still D. however ( )19. A. dangerous B. difficult C. heavy D. different ( )20. A. One B. Some C. Because D. All Dear Editor I am writing to you to 21 you about my problems with my family. I am very 22 now and I need your help. I don’t think my parents 23 me. They don’t care what I like doing, but always talk about how 24 study. They don’t let me 25 out with my friends at weekends. They always ask me 26 home and study. I’m sure I could still study very well even if I had more time to play, but they just 27 me. We often argue(爭論 ) with 28 . I really hope that my parents can 29 my friends. What shall I do? How can I get them to understand me? Please give me 30 . Thank you! Yours Michael ( )21. A. talk B. say C. tell D. speak ( )22. A. happy B. cheerful C. unhappy D. fortable ( )23. A. love B. understand C. hate D. like ( )24. A. I should B. should I C. I to D. do I ( )25. A. go B. to go C. going D. go t