1. In this age of globalization, when people have more chances to travel, it is a great [   ] to speak more than one language.


2. Little kids begin learning their mother tongue by [   ] what they hear around them.


3. Oil and natural gas exist on this planet in a limited supply; therefore, it is essential for people to develop [   ] to these nonrenewable energy sources.


4. The twins look so alike that even their parents confuse one with [   ] sometimes.


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


6. Michelle often reviews research papers for one of the top journals in [   ] genetics.


7. Jim is very [   ] and dynamic; he enjoys physical activities and you can seldom see him stay still for more than ten minutes.


8. Do not forget your ticket! Only ticket-holders will be [   ] to the concert.


9. The cars are moving so slowly that I can [   ] them just by walking fast.


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


11. The MRT system has greatly [   ] this area; I can’t even recognize the location of my old school.


12. Children like to go trick-or-treating in special     on Halloween. Some may dress like an angel or a robot. 


13. A fine will be     on the drivers who fail to pay their highway toll on time. 


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


15. To prevent sewage from entering the waterways and protect public health, the city councilman strongly demanded that the sewage system ____ in three months. 


16. More advances in technology [   ] in the last decade than in any other time in human history.


17. Like [   ] other language skills, reading requires practice.


18. I have lots of things to carry, but I have only two hands. Would you mind [   ] for me?


19. In my [   ], students shouldn’t spend too much time chatting on the Internet.


20. Gorillas are [   ] the best communicators of all animals.


21. Of all the novels I’ve read, this one is __ interesting. 


22. It is often said that prevention is better than cure, so why not take some __ in advance? 


23. His corruption as a government employer has put a [   ] on his long-standing reputation.


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


25. 《Judy》:I am going to take the driving test tomorrow, and I am feeling so nervous. 《Joan》: Take it easy! I will [   ]. 《Judy》: Thanks. I hope that I can get my driver’s license as soon as possible.


26. The 2010 Flora Expo, held in Taipei, is very successful. Do you know [   ] city is going to host the next Flora Expo?


27. A thorough analysis of market [   ] can increase the success rate of a new product.


28. My mother always says we should think things through before [   ] anything.


29. I remember [   ] the movie with Tom last year. It is very good.


30. We are so glad that Miss Snow is teaching [   ] English.


31. 《Ken》: Taxi! 《Driver》: Where would you like to go, sir? 《Ken》: [   ]


32. [   ] help us fly kites in spring and cool us in summer.


33. Cheating in exams is a serious [   ] of the school regulations.


34. Newspapers are a good way to hear the news. [   ] TV news programs.


35. A: [   ] B:He’s a salesman.


36. We still haven't got used to [   ] in the hot and humid city after these many years.


37. In the face of energy crisis, scientists worldwide are now exploring ____ energy to replace fossil fuels. 


38. This machine is [   ]. All you have to do is turn it on and it will operate by itself.


39. Benson [   ] his back when he fell off the tree.


40. We could have gone swimming if the weather [   ] warm and sunny.


41. Employees are required to follow the standard operating procedures and to act ____. 


42. The piano is one of the most popular musical [   ] today.


43. The deadline is Friday, so we had better [   ] the report as soon as possible.


44. Many couples wanted a divorce but could not have one because their case was not covered by any [   ].


45. Tammy receives no payment because she is a [   ] worker in the hospital. She works there just because she enjoys helping people.


46. My mother [   ] for me when I arrived home last night.


47. I was browsing in the library and [   ] an interesting book on traveling in Alaska.


48. It is true that the surroundings will [   ] one’s work and studies.


49. The potential amount of energy that can be produced by wind is huge. It is [   ] five times the current amount of electricity that is used.


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