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


2. When we receive text messages of promotions from a company, we must be ____ of possible false advertisement out of which the company wants to make profit.  


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


4. Tina’s legs were black and blue and she had several burn marks on the arms. She may have been [   ].


5. Not until Toyota debuted the model Prius in the late 1990s ____ the technology of hybrid engine. 


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


7. A 5-year-old child was lost in the [   ]. The forest made it hard to trace him down.


8. Many of our character traits are not tested __ we are in a difficult situation. 


9. Many families are struggling to [   ] during this recession.


10. [   ] the doctor’s warning, he still worked overtime to earn a living.


11. Mary likes her job, [   ]?


12. 《Andre》:Oh, man! Nobody can stand this kind of scorching heat. 《Kevin》:[   ] You can’t even stay in the sun for five minutes. 《Andre》: You’ll be scorched like a shriveled plant. Anyway, I guess this afternoon there’s nothing we can do but stay home. 《Kevin》:I guess so. I don’t want to be taken to the hospital for heat exhaustion or sunstroke.


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


14. 《Lily》: I heard you’re moving to New York. 《Brian》: Yes. I’ve got an offer in upstate New York. 《Lily》: Oh, that’s great! But I’m going to miss you. 《Brian》: Me, too. [   ]


15. That is my [   ] favorite restaurant. The service is bad and the food doesn't taste good.


16. 《Linda》: Alex, it’s your turn to do the dishes, isn’t it? 《Alex》: [   ]《Linda》: You know very well that I did the dishes last night.


17. It has been so cold lately [   ] I have never felt like going out.


18. We don’t need to [   ] what the future will hold; just focus on the present task.


19. I like this movie very much. I have seen it [   ].


20. Those angry peasants held a sit-in [   ] make their protests against the new policy.


21. There was a rumor that there had been a minor accident at the nuclear power plant, but a spokesman for the plant issued a [   ].


22. Many people in the U.S. are staying away from restaurants, skipping vacations and [   ] on buying new cars.


23. A:Hey, Paul. I see you walking lame all the way. [   ]? B:Nothing. I just sprained my ankle while playing basketball the day before yesterday.


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


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


26. The United Nations made an [   ] for help from all over the world after the earthquake.


27. There is only a little juice left in the [   ].


28. The shopping [   ] policy aimed to stimulate consumption in order to boost up droopy economy.


29. If you want to be promoted at work, you need to work [   ].


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


31. By that time the theater was already [   ], so we had to buy tickets for the next day.


32. The exterior of Tina's apartment has an exceptionally large [   ].


33. A few political extremists ____ the crowd to attack the police. 


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


35. Nowadays, many industries try to do something for     problems. They know the earth is greatly damaged by pollutants. 


36. [   ] before the twentieth century, traders carried coffee from Africa to Arabia.


37. After many years of moving, Daniel finally found a [   ] home in the Dublin suburbs.


38. [   ] warming has caused dramatic climatic changes in many areas around the world.


39. Many people want to do some sports, but there are not enough [   ] in the city.


40. Many companies [   ] e-mails sent out by their employees. Is it OK for employers to check on their employees like this?


41. Don’t ask me to go with you. I’m not going, because my [   ] is made up.


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


43. The [   ] you work, the [   ] you will succeed.


44. The congressmen have reached a ____ that smoking should be banned within thirty feet from the entrance of a building. 


45. The former CEO of Highhills Inc. was believed ____ a suicide. 


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


47. I only wish that all my lectures drew such favorable [   ] as this time.


48. For many people, one of the joys of [   ] is the prospect of parenthood.


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


50. A brake is a device designed to [   ] or stop the motion of a mechanical body.