1. The president of the United States can only serve two [   ] of four years each.


2. A few political extremists [   ] the crowd to attack the police.


3. Not only [   ] most male birds have extremely beautiful feathers, they know how to use them.


4. This contract is [   ] approval by both parties involved.


5. 《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.


6. This coffee shop is famous because it sells numerous varieties of coffee beans [   ] from around the world.


7. A:What should we do now? B: [   ]


8. [   ] intense competition, the prices of food and drinks would be much higher.


9. The snow [   ] on the roads makes driving an extreme hazard for people rushing to work in the morning.


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


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


12. Chinese traveling abroad began as a trickle in the '90s, but they are [   ] Asian destinations like a tourism tsunami.


13. In India, eighty percent of the entire [   ] are Hindus.


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


15. He went for an ocean voyage and [   ] his health.


16. The farmer put a lot of [   ] on his rice field, hoping that the crops may flourish.


17. Two years ago a severe earthquake struck the city and caused a [   ] tsunami, leaving hundreds dead, thousands injured.


18. The western coalition is trying to [   ] Libya’s air-defense system to protect civilians and help rebel forces.


19. 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.


20. ____ in 1952, the MIT Sloan School of Management is one of the world’s most prestigious business school.  


21. Many of our character traits are not tested [   ] we are in a difficult situation.


22. I’m not [   ] you! Our team has just won both the gold medal and the silver medal.


23. At first I didn’t find her annoying, but after a while her behavior began to [   ] me.


24. A study shows that intelligence accounts for only 20 percent of the factors that determine success, __ EQ playing an important role in the remaining 80 percent. 


25. 《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.


26. This contract is __ approval by both parties involved. 


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


28. 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.


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


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


31. Public education [   ] would need to be increased for small-size classes, teacher training programs and new E-learning facilities.


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


33. It took the Davies' fifteen years to complete that [   ] mansion.


34. The mayor determined to build a [   ] city. By then, users can get access to the Internet at any time and any place in the city.


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


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


37. The joke you told me really [   ].


38. A:Why did Judy leave? B: [   ]


39.     I read the proposal     the budget was so high. 


40. Where are you going? I’m going to the [   ].


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


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


43. All branch stores are required to fill out the ____ report to check if there is enough merchandise on shelf and in stock. 


44. The representatives, with cigarettes in their hands, [   ] over a few details when suddenly smoke detector set off the fire alarm.


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


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


47. Advertising is distinguished from other forms of communication [   ] the advertiser pays for the message to be delivered.


48. All branch stores are required to fill out the [   ] report to check if there is enough merchandise on shelf and in stock.


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


50. 《Woman》: May I speak to Mr. Smith? 《Man》: [   ]《Woman》: Never mind. I will call him again later this afternoon.