53. According to the author, the refrigerator magnet is ________.

32.

14. Scholars from the University of Kansas published the results of a decade-long study recently, suggesting that sending children to “pre-school” at the age of 4 comes too late to ________ educational drawbacks at home.

27.

54. A neighborhood was classified as a “slow” one when ________.

36.

21.

1. ______ increase in the oil price have prompted anxiety among the car owners.

8. It is important that climate-friendly technologies should be ________ to developing countries to help them build green economy. 

20. The Copenhagen conference is looking to agree on a(n) ________ that will be built on the current Kyoto Protocol.

15.At the end of the historic area, Wilmington displayed its _______ as a working port city: large ware-houses and a few other dated office buildings.

39.