1. Many buildings in Taiwan, including the Taipei 101 Tower, [   ] all non-essential lights from 8:30 p.m. to 9:30 p.m. yesterday to mark the worldwide “Earth Hour” event.


2. Gorillas are __ the best communicators of all animals. 


3. A:Are you still driving to the south every week to take care of your grandmother? B: No, I’m not doing that anymore. [   ] A: Oh! I’m so sorry. Is there anything I can do to make you feel better?


4. Although experts agree that it is vital to eat a good breakfast, not many people are [   ] their advice.


5. I’d like to take [   ] of this opportunity to thank you all for your co-operation.


6. The original model has been [   ] and replaced by the new one.


7. I am very thirsty. May I have some more [   ]?


8. I usually buy daily necessities in the same grocery store. The clerks know me because I'm a regular [   ].


9. If I were you, I would purchase more insurance, just for your own [   ].


10. A lot of debris ____ at the site of explosion for quite a while. 


11. The average was down [   ], went briefly into the black around lunchtime, then ended with a loss of 139.


12. The [   ] of this scholarship will receive $30,000.


13. I __ know him. I have talked to him no more than three times. 


14. [   ] the lobbying groups been backing up the new protocol, but several industry labor unions are now voicing their stern support for it.


15. This brand of detergent is your best choice because it [   ] the toughest stains and won’t fade colors or damage fabric.


16. You cannot leave [   ] you finish all the work the boss expects you to do.


17. He is a very conscientious professor. Never [   ] he let his students leave his classes earlier.


18. There were hundreds of [   ] at this ball game.


19. The total number of the staff is [   ] larger in our company than that in yours.


20. The approaching typhoon forced the organizer     the game. 


21. A: Can you recommend to me an English tutor? B: Sure. Mr. Johnson is a very good one. A: Where does he live? B: [   ]


22. Robert can’t drive us to the airport. He has [   ] to take us all.


23. I may not be as [   ] as you, but I believe my hard work can make me successful in the long run.


24. I [   ] use a payphone. I just use my cellphone instead.


25. The museum’s main hall [   ] an enormous book, and its restaurant looks like a big cake.


26. I was [   ] to find I did not have enough money to pay for the taxi fare. My face turned very red.


27. Kate lost her way while driving to River City. She [   ] her road map at home.


28. Jason is a great tour guide because he is not only ready to help [   ] also very knowledgeable.


29. [   ] you encounter any problems regarding the new system, please notify the tech support ASAP.


30. Jack [   ] to help clean the classroom after school. Everybody is surprised because he is usually very lazy.


31. All of [   ] have joined the on-the-job training.


32. It is imperative that the city council     in favor of the city renewal plan. 


33. The corporation began sponsoring charity events so that its public image [   ].


34. We can always work toward improving our self-control, and, [   ], we can help others do the same.


35. Tim knows smoking is unhealthy but he is having a hard time [   ].


36. Since the typhoon, the basement has been filled with water. We have to [   ] it as soon as possible. Otherwise, waterborne diseases might spread.


37. In the previous year, you [   ] ballpoint pens and pocket calendars to my school. Will you do the same this year?


38. You should never speak [   ] anger to a small child.


39. The field is too barren to yield crops, so the farmers decide to put some [   ] on it.


40. [   ] are small stores that sell fashionable clothes, shoes, jewelry, etc.


41. The children could not help but [   ] when the clown stepped on the stage.


42. 《Customer》: I’m looking for a portable CD player. 《Salesgirl》: [   ]《Customer》: Hmm. Do you have something a little less expensive?


43. Library users will be fined for returning books after the [   ] date.


44. 《Mary》: We were too late for the concert! 《Tom》: [   ] It wasn’t very good anyway.


45. No city, Tel Aviv or Jerusalem [   ], is home to more Jewish people than New York.


46. Janet put forward the proposal that the program [   ] until Mr. Brian Reynolds came back from abroad.


47. I just learned that Tivoli Gardens in Copenhagen, Denmark was the [   ] for the original Disneyland in L.A., California.


48. The job of a dentist [   ] a lot of patience.


49. The controversial singer must [   ] 100 hours of community service for altering the age on his ID card.


50. __ and blurred, it is extremely difficult to recover his sight.