1. The good weather and beautiful beaches make this island a great [   ] attraction.


2. Joy and happiness spread throughout the Middle East and North Africa, where people [   ] their own president in January 2011.


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


4. The potential amount of energy that can be produced by wind is huge. It is [   ] five times the current amount of electricity that is used.


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


6. People who feel they must have the best of everything are rarely [   ]. It’s better to have more realistic ideas about what is important in life.


7. We should work together [   ].


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


9. Before you fly, please be sure to read the list of items [   ] from being carried onto the plane. You must not bring any of these items to the security checkpoints.


10. He can type very fast. He __ type 80 words a minute. 


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


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


13. 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. 


14. 《John》: Sorry, my English is very poor. 《Jay》: Don’t worry. Mine is not [   ] better.


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


16. Students have to pay tuition fees before they start [   ] courses via the computerized registration system.


17. The traffic accident took three lives, [   ] the truck driver.


18. The pianist's performance of Franz Liszt's piano pieces was an [   ] of skill and strength.


19. A lot of debris [   ] at the site of explosion for quite a while.


20. It [   ] me two hours to get there because the traffic was awful.


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


22. The secretary was [   ] for work because of the heavy traffic.


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


24. The city is going to hold a public hearing to discuss     the historical building should be torn down. 


25. There are elegant shops on [   ] side of the street.


26. I like to [   ] time [   ] my family.


27. If you pay your bills on time, you will have good [   ].


28. A: Can you do me a favor? B: [   ] A: Please return this book to the library for me. It’s due today.


29. Acid rain causes the ground to release [   ] substances; plants and trees are thus slowly poisoned.


30. Many expressive people can recall     colorful childhoods; singer Carly Simon, comedian Billy Crystal, and poet Nikki Giovanni     their parents with involving them with richly creative experiences. 


31. For the sake of health, many people have dramatically reduced the amount of red meat they [   ].


32. I didn’t believe [   ] Jeffrey said, [   ] annoyed him very much.


33. Of all the novels I’ve read, this one is __ interesting. 


34. Can you [   ] how old Ms. Wang is? She is 50, but she looks as if she were only 30.


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


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


37. How much do you guess [   ]?


38. There are two people in the office. One is John and [   ] is William.


39. Don’t buy me a whole cake. A [   ] will be enough.


40. I usually buy daily necessities in the same grocery store. The clerks know me because I'm a regular [   ].


41. Being an assistant is just a [   ] job. Allen plans to find a permanent position in an international corporation.


42. Michael, as well as his two older brothers, [   ] the scholarship several times.


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


44. 《Customer》: I’d like this one, please. 《Clerk》: [   ] 《Customer》: I’ll put it on my Best Card.


45. My mother always says we should think things through before [   ] anything.


46. I am looking forward to [   ] from you at your earliest convenience.


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


48. Free Spirit Team will probably [   ] the speech contest as it is much better than our team.


49. Cultures [   ], so we sometimes need to adjust our behavior when we are in a new country.


50. Tammy receives no payment because she is a [   ] worker in the hospital. She works there just because she enjoys helping people.