1. Robert can’t drive us to the airport. He has [   ] to take us all.


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


3. 《Martin》: I did terribly at the math exam. I don’t think I will pass. 《James》: [   ] You’ve spent too much time playing the computer games lately.


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


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


6. The deadline is Friday, so we had better [   ] the report as soon as possible.


7. It was really a [   ] for the little boy to survive the air crash.


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


9. If a person doesn’t know a word, he or she should look it up in the [   ] in the back of the book.


10. I read about the crime in the [   ].


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


12. In the box [   ] some photos that I took when I was on the trip.


13. Little kids begin learning their mother tongue by [   ] what they hear around them.


14. I am very thirsty. May I have some more [   ]?


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


16. My father and his partners’ cooperation is based upon their [   ] respect and understanding.


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


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


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


20. [   ] everyone else was studying hard for the midterm, Jimmy was reading comic strips to kill the time.


21. I like all [   ] of music—pop music, country music, jazz and so on.


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


23. It's getting late. Let's [   ].


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


25. The government may require individuals to limit the carbon dioxide they produce to [   ] global warming.


26. You don't want to go to the party, [   ]? You look very sleepy.


27. 《Sylvia》: What's your favorite season? 《Amy》: [   ] 《Sylvia》: Me too. I hate cold winter days.


28. The supervisor was so [   ] of the new idea that his staff proposed that it was never put into real practice.


29. ____ you encounter any problems regarding the new system, please notify the tech support ASAP. 


30. In the previous year, you [   ] ballpoint pens and pocket calendars to my school. Will you do the same this year?


31. The driver was driving her car and reading a text message, and that was exactly [   ] she bumped into the motorcyclist.


32. A: Why did you feed that kitty? B:There is nothing [   ] a homeless cat.


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


34. __ the election is the question both political parties are asking. 


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


36. A: [   ]. What’s been going on? B: What do you mean by that? A:Look. You quit smoking. You no longer drive to work; instead, you use public transportation. And you eat really healthy food. You are going “green.”


37. Parents should have [   ] rules for their children. These rules should not change according to parents’ mood.


38. Many customers in Taiwan believe that they were being     as compared to the much lower price of the same product sold in the US. 


39. Among the things that money cannot buy [   ] good health in the mind and body.


40. The controversial singer must [   ] 100 hours of community service for altering the age on his ID card.


41. A thorough analysis of market [   ] can increase the success rate of a new product.


42. We still have [   ] time, so you don’t need to hurry.


43. His corruption as a government employer has put a [   ] on his long-standing reputation.


44. My uncle had a 15-year-long [   ] in business before he became a teacher.


45. Michelle would certainly have attended advisory board meeting [   ] on the highway.


46. A single bacteria, [   ] the right conditions, divides rapidly into colonies of billions in one day.


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


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


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


50. Although experts agree that it is vital to eat a good breakfast, not many people are [   ] their advice.