11. Mr. Demmings bought some property (    ) the West Coast (    ) the early 1990's.                                                       
12. (    ) January, all of the office furniture at Office Works will be (    ) sale (    ) greatly reduced prices.                         
13. I will arrive (    ) Orly Airport (     ) Paris (     ) around nine o'clock.                                                           
14. (    ) present, there are no job openings (     ) the design department, but there may be an opening (    ) a month or two.            
15. Some of the most fashionable and expensive stores (    ) the United States are (    ) Rodeo Drive (    ) Los Angeles.                  
16. Textiles were made (     ) hand (     ) the invention of the power loom (     ) the nineteenth century.                                
17. Her photo appeared (    ) the cover of Business Watch, and there was a story about her (    ) the magazine as well.             
18. I commute to work (    ) the city (     ) train, but my friend always travels there (     ) his own car.                               
19. Every year, people (    ) Mexico celebrate their independence from Spain (     ) September 16.                                         
20. (     ) 1990 to 1998, he lived (     ) a small farm (     ) Vermont.                                                                   

解答：　
11. Mr. Demmings bought some property (on ) the West Coast ( in ) the early 1990's.
12. (During ) January, all of the office furniture at Office Works will be ( for ) sale ( at ) greatly reduced prices.
13. I will arrive ( at ) Orly Airport ( in ) Paris ( at ) around nine o'clock. 
14. ( At ) present, there are no job openings ( in ) the design department, but there may be an opening ( within ) a month or two.
15. Some of the most fashionable and expensive stores ( in ) the United States are ( on ) Rodeo Drive ( in ) Los Angeles. 
16. Textiles were made ( by ) hand ( until ) the invention of the power loom ( in ) the nineteenth century.
17. Her photo appeared ( on ) the cover of , and there was a story about her ( in ) the magazine as well.
18. I commute to work (in ) the city ( by ) train, but my friend always travels there ( in ) his own car.
19. Every year, people ( in ) Mexico celebrate their independence from Spain ( on ) September 16.
20. ( From ) 1990 to 1998, he lived (on ) a small farm ( in ) Vermont.