1. The power supply in this area is not [   ]. You had better save your file every ten minutes.


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


3. I sent an email to the CEO of this company last week but have not received any [   ] yet.


4. Yani Tseng, who won several ladies professional golf championships, spent [   ] of time practicing golf before she became so successful.


5. The book costs NT$1,200, [   ] of packing and delivery.


6. Our teacher always tells us that knowledge should be [   ] through years, not gained in one day.


7. The building collapsed, and only one person buried underground could [   ] survive the catastrophic earthquake.


8. Although the farmers had to work in the mud, they were all pleased, [   ] the rain had come in the nick of time.


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


10. The washing machine is not working properly. I have to get it [   ].


11. According to our justice system, the suspect will be considered [   ] until proven guilty.


12. The manager talks as if he     mad at you, but this is just the way he talks to everybody. 


13. You don't want to go to the party, [   ]? You look very sleepy.


14. This ring was a family heirloom, which was [   ] from my grandfather to my father.


15. 《Man》: Officer! Wait, officer! That’s my car! 《Police》: Oh, it is? Then I won’t need a tow truck. 《Man》: No! [   ]《Police》: Good. It’s illegal to park beside a fire hydrant.


16. Snow [   ] more solar radiation than liquid water. Therefore, don’t forget to protect your eyes when you go skiing.


17. The production of bread mainly includes the [   ] such as flour, sugar and eggs.


18. Michelle would certainly have attended advisory board meeting __ on the highway. 


19. The police questioned the [   ] for two hours, but they still weren’t sure whether he robbed the bank.


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


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


22. He decided to continue the exhausting training for the Olympics, __ his physical condition was poor. 


23. I bought a book and finished reading it [   ] I was on the train. The reading made the long-hour trip easier.


24. The government is taking a very [   ] approach to managing this economic crisis.


25. Academic performance should not be [   ] purely by examination results, which concern only a limited aspect of learning.


26. Students must study hard, [   ] they will fail the test.


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


28. When she [   ] in track-and-field events in the 1960 Olympics, Wilma Rudolph won three gold medals.


29. Neither the teacher nor his students [   ] in the classroom last night.


30. The [   ] of food in this world is unequal. Some suffer from hunger in many areas such as in Africa.


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


32. To [   ] road accidents, we should always follow traffic rules.


33. Dr. Wilson, __ is the CEO of the company, will be here to give a speech at the opening ceremony next week. 


34. The two eastern counties suffered losses of NT$11.4 million to farms and local agriculture, while related facilities sustained damage [   ] 18 million NT dollars.


35. Michelle would certainly have attended advisory board meeting [   ] on the highway.


36.     the CEO walked into the conference room, all department managers became very nervous. 


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


38. We still have [   ] time, so you don’t need to hurry.


39. You should understand that learning a language well results from [   ] practice.


40. No other girl in her class dances [   ] as she does.


41. A:Did the doctor tell him to stop smoking cigarettes, or did he do it on his own? B: [   ]


42. For many people, one of the joys of __ is the prospect of parenthood. 


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


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


45. A: Quiet down, or you may disturb the neighbors. B: [   ]


46. Any revision of the law should be [   ] with the overall goal of the government's policy. The priority should be placed on the welfare of the citizens.


47. Please fill out the paperwork before [   ] in line.


48. A brand brings a set of [   ] in the mind of the consumer and one of these is the country of origin.


49. High school students in Taiwan often [   ] that preparing for tests keeps them from having enough sleep.


50. I had a great time reading the book [   ] you lent me.