1. The knife isn’t useful because its [   ] is dull.


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


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


4. The window [   ] by my little brother yesterday.


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


6. The audience enthusiastically [   ] the pianist on her amazing performance.


7. A:Anna? Anna Dickson? I thought it was you! B: [   ] A: Oh. I am so sorry. I must have missed her too much.


8. I'd [   ] go to the zoo [   ] visit the museum.


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


10. Because the blood [   ] to supply enough oxygen to his brain, he feels dizzy quite often.


11. The Spanish Flu [   ] from 1918 to 1920 claimed over thirty million lives around the world.


12. [   ] activity should be avoided after an operation.


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


14. Many couples wanted a divorce but could not have one because their case was not covered by any __. 


15. My mother [   ] for me when I arrived home last night.


16. The [   ] of food in this world is unequal. Some suffer from hunger in many areas such as in Africa.


17. Volcanic [   ] grounded thousands of passengers and fliers across Europe last year.


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


19. A student's frequent absence from school is often a clear [   ] of his problem in life and study.


20. After the car accident, I kept __ that things will get better. 


21. 《Sandra》:I think watching TV is a waste of time. Most programs are stupid or boring. 《Jack》: [   ] What about sports or the news? You watch those sometimes, don’t you? 《Sandra》: Well, actually for the news, I prefer the newspaper.


22. [   ] production lines is the prioritized agenda in manufacturing industries.


23. I [   ] use a payphone. I just use my cellphone instead.


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


25. It is hard for me to [   ] the smell of Chanel No. 5 perfume.


26. Our teacher always tells us that knowledge should be [   ] through years, not gained in one day.


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


28. I have been taking the Yoga class [   ] I came to this school.


29. My sister knows many passages from Shakespeare [   ]; she can memorize the details of his plays.


30. The shopping ____ policy aimed to stimulate consumption in order to boost up droopy economy. 


31. A: What’s for dinner? B: How about some sushi? A: [   ] I prefer a hot bowl of noodles to a cold dish. B: I see. Let’s have our dinner at the noodles stand across the street.


32. 《Nicole》: Do you have any plans for tomorrow, Alison? 《Alison》: [   ]《Nicole》: Let’s go shopping!


33. For many people, one of the joys of __ is the prospect of parenthood. 


34. __ activity should be avoided after an operation. 


35. A: Gee, your room is a mess. B: I have been preparing for an important exam these days. [   ]


36. The museum’s main hall __ an enormous book, and its restaurant looks like a big cake. 


37. The 2010 Flora Expo, held in Taipei, is very successful. Do you know [   ] city is going to host the next Flora Expo?


38. Reading detective stories is one of Steve’s favorite [   ].


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


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


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


42. [   ] the lobbying groups been backing up the new protocol, but several industry labor unions are now voicing their stern support for it.


43. China is calling for a new global currency [   ] the dominant dollar.


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


45. I might have the chance to visit the theater [   ] person.


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


47. I’ve always thought that [   ] the dishes is easier than preparing food, so it is my husband that does the cooking and I wash the dishes.


48. A:Did the doctor tell him to stop smoking cigarettes, or did he do it on his own? B: [   ]


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


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