1. A:Don’t forget you still owe me fifty dollars. B: [   ]


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


3. We have been waiting for Jack for almost two hours. I wonder [   ].


4. [   ] at the back door, and they may hear you and open the door.


5. 《John》: How often do you exercise? 《Amy》: [   ] 《John》: That’s great. No wonder you keep in good shape.


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


7. This restaurant makes good sandwiches. They will even [   ] your bread for free.


8. The average was down [   ], went briefly into the black around lunchtime, then ended with a loss of 139.


9. Old soldiers never die; they only __. 


10. On the average, a healthy heart [   ] to pump five tablespoons of blood with every beat.


11. Gardening is my mother's favorite [   ]. She loves to spend time taking care of the flowers.


12. It is a [   ] of law to ride a motorcycle without wearing a helmet.


13. Under no circumstances [   ] accept his proposal of buying our factory.


14. 《Jenny》: Where did you get your hair done? It looks so stylish. 《Lilly》: [   ] By the way, I highly recommend the hairstylist called Paul. 《Jenny》: Thanks. I’ll sure go take a look.


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


16. I have lots of things to carry, but I have only two hands. Would you mind [   ] for me?


17. Nancy screamed when she saw a taxi [   ] into an old woman on the street.


18. Robert can’t drive us to the airport. He has __ to take us all. 


19. After being bitten by a [   ] snake, John was sent to a hospital.


20. 《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.


21. 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.


22. She could not concentrate when phone calls or visitors kept interrupting her thoughts, so she took a [   ] walk along the river, thinking over her career plan.


23. Many ads use our __—like fear or love—to persuade us that we need the product. 


24. It is often said that prevention is better than cure, so why not take some [   ] in advance?


25. Free Spirit Team will probably __ the speech contest as it is much better than our team. 


26. After the car accident, I kept [   ] that things will get better.


27. The building collapsed, and only one person buried underground could [   ] survive the catastrophic earthquake.


28. Children like to go trick-or-treating in special     on Halloween. Some may dress like an angel or a robot. 


29. Employees considered non-essential were    . The temporary leave resulted from bad economic situations. 


30. Taiwan is famous for its [   ] industry. Many foreigners are using computers made in Taiwan.


31. As the project depends on [   ] at the federal level, the city and county may have to wait until the budget cutting ends.


32. I just learned that Tivoli Gardens in Copenhagen, Denmark was the ____ for the original Disneyland in L.A., California.  


33. The best way to buy train tickets [   ] book online.


34. A brand brings a set of __ in the mind of the consumer and one of these is the country of origin. 


35. The convicted man [   ] against the judge's verdict because new evidence had proved his innocence.


36. Since Michael and I work in the same hospital, I can hardly avoid [   ] him.


37. To see is    . 


38. From now on, all visitors to the building must show their [   ] in the lobby.


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


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


41. A:My goodness! There are so many people waiting outside! B: [   ] A: Maybe we should just go to another restaurant. Looks like it will take forever to go get in. B: That’s a good idea.


42. Today is a beautiful day, [   ]?


43. Joseph is a man of great [   ]. Once he has made up his mind, no one can change it.


44. [   ], I didn’t like Susie, but then I found she was a nice girl. Now we’re good friends.


45. The government is taking a very [   ] approach to managing this economic crisis.


46. Research in the environment has [   ] that the rain forests throughout the world are being ruthlessly destroyed.


47. I don’t know [   ]. Why not call and ask him in person?


48. __ and blurred, it is extremely difficult to recover his sight. 


49. The coach, together with his team players, [   ] warmly welcomed when they got off the bus.


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