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


2. The president’s reckless actions have [   ] his country into a disaster.


3. Market growth is the rate [   ] the overall market is growing.


4. A restaurant manager should know how to deal with [   ] from customers who are not satisfied with the food or the service.


5. Gorillas are __ the best communicators of all animals. 


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


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


8. 《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.


9. [   ] speaking, you don’t look nice in that sweater. The stripes on it make you look fat.


10. To have her own clothing store, Jane borrowed money from family members to get her business __. 


11. Our boss [   ] the importance of our finishing the report over the weekend, since he wanted to discuss it at the meeting on Monday morning.


12. My grandfather [   ] for ten years, but I still miss him a lot.


13. The flooding after the typhoon [   ] many houses.


14. In this course, the economic background of labor legislation will not be mentioned, [   ] be dealt with.


15. I have to study for my math exam. I don’t want any [   ]. Please do not talk to me or play loud music.


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


17. We can always work toward improving our self-control, and, __, we can help others do the same. 


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


19. The freeway is now [   ] to motorists after it was blocked off by a huge landslide yesterday.


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


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


22. The luxury tax is set to [   ] on July 1, but it has already dampened enthusiasm in the real estate market.


23. Nick: May I speak with Sharon, please? Betty: I'm afraid you [   ] the wrong number.


24. You can’t master English overnight! Remember that speaking it well [   ] a lot of practice.


25. John [   ] broke his glasses while playing basketball with his classmates. He should have been more careful.


26. I was browsing in the library and __ an interesting book on traveling in Alaska. 


27. The new medicine is still in [   ] stages and will not hit the market until next year.


28. The food critic was famous for [   ] chefs that didn't give him complimentary dinner.


29. The social welfare system [   ] provide the underprivileged people with sufficient support.


30. A:I can’t get into my favorite jeans anymore. It’s really depressing. [   ]. B:Well, I think you look fine. You shouldn’t worry about it.


31. He can type very fast. He [   ] type 80 words a minute.


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


33. Jane got a high score on the English test today. She [   ] very hard last night.


34. The field is too barren to yield crops, so the farmers decide to put some [   ] on it.


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


36. I like this apartment better. It’s cheap, and [   ], it’s near my office. I can walk to work.


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


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


39. Janine will probably lose her job [   ] her boss in front of the entire staff last week.


40. I suggest you [   ] the Internet because a lot of people have experienced the same problem before.


41. A: How are you feeling today, Mr. Lin? B: [   ]. A:I see. Please sit back and open your mouth. Your throat is swollen, too. Do you have any other symptoms? B: I also had a terrible headache last night.


42. My brother's [   ] is to become a doctor; but he'll need to study hard to get into medical school.


43. In the United States, air pollution [   ] at its worst in the 1960s.


44. 《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.


45. If you [   ] that HBO movie last night, you wouldn’t be so drowsy now.


46. He moved to the countryside as soon as he retired. However, he found himself unable to [   ] to country life because it was not so convenient as living in the city.


47. Linda is an [   ] friend of mine; there is no secret between us, and we always share our happiness and sorrow.


48. 《Ken》: Oh my! 《Claire》: [   ]《Ken》: My headache is killing me.


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


50. Many journalists do not ____ whether or not it is appropriate to interview a child during a tragic event for he/she is usually too young to understand the trauma he/she is involved in.