1. I was [   ] about Mary so I watched her closely.


2. Time [   ] quickly, so you’ll need to use it wisely.


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


4. 《Lin》: You look so angry. What happened? 《Chen》:This morning I took my car to the garage to have them check the air-conditioner. They only gave it a once-over, refilled it with some Freon, and charged me 3,000 dollars! 《Lin》: No wonder you’re livid. [   ]


5. My family’s newest [   ] is a print shop in Taipei.


6. Has the contest already [   ]?


7. A single bacteria, __ the right conditions, divides rapidly into colonies of billions in one day. 


8. Just look at how much we [   ] when we worked together last week.


9. According to the health official, the rate of increasing number of cases is not beyond [   ] is expected and the symptoms of all the patients are mild.


10. Due to the winter storm, hundreds of flights were [   ] and many passengers had to stay in airports.


11. A: Can you visit us in New York over Christmas? B: I really want to, but I don’t think I can. A: [   ]. What’s the problem?


12. The social welfare system ____ provide the underprivileged people with sufficient support. 


13. The [   ] of calcium may cause osteoporosis, and the patients may get bone fractures easily.


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


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


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


17. The [   ] of the theory is still being questioned since a number of researchers disagree with its main argument.


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


19. He bought a car right after he obtained a driver's [   ].


20. The [   ] from the top of Mt. Kilimanjaro is amazing.


21. Small businesses usually can respond to new market     fast and make necessary changes. 


22. [   ] everyone else was studying hard for the midterm, Jimmy was reading comic strips to kill the time.


23. A: Why did you feed that kitty? B:There is nothing [   ] a homeless cat.


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


25. Mutual funds came into our country in recent years. This financial product was developed for those who do not have enough time, money and __ knowledge to invest. 


26. A: What’s for dinner? B: How about some sushi? A: [   ] I prefer a hot bowl of noodles to a cold dish. B: I see. Let’s have our dinner at the noodles stand across the street.


27. The economy is in bad shape, one reason for which is the rising [   ] rate.


28. Historical insights serve to clarify and [   ] the critical activity of a period.


29. [   ], I cannot agree with him on the matter.


30. My brother is very [   ]; he won’t give up easily.


31. There is a risk that the longer people put off their work, __ it will eventually get done. 


32. I think thunder is scary, [   ] lightning is beautiful.


33. A: Hey, do you have a minute? B: [   ]


34. The museum’s main hall __ an enormous book, and its restaurant looks like a big cake. 


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


36. He went for an ocean voyage and __ his health. 


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


38. I [   ] know him. I have talked to him no more than three times.


39. She claims to be an advocate of animal rights. [   ], she is always wearing fur and carrying a crocodile-skin purse.


40. Imagine [   ] an extra day off this weekend. That would be great.


41. A: [   ] B:He’s a salesman.


42. In this industry, you really need to keep [   ] if you don't want to be caught off guard.


43. The main thing that makes mobile phones [   ] harmful is radiation.


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


45. Professor Lin does [   ] not late assignments. Students have to hand them in on time.


46. The government should take measures to control the growing [   ]. Food prices have gone up sharply recently.


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


48. We don’t need to __ what the future will hold; just focus on the present task. 


49. I don’t know [   ]of the people in this room. Can you introduce each of them to me?


50. Modern people tend to value material enjoyment too much and ignore [   ] pursuit.