6. —Poor and backward area ________ Western China is, many college students are willing to work there after graduation.   —I can’t agree more. More chances of employment are available.

47. What does Grace Kao say about interracial lodging?

12. A Russian plane broke up in the air, ________ all 224 people on board which was believed ________ by a bomb planted by Islamic State.

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.

33.

45. What does Sam Boakye’s remark mean?

19. So large is the Pacific, _____ 30% of the earth’s surface, that the energy generated by its warming is enough to touch off a series of weather changes.

48. According to David Blankenhorn, people commonly believe that ________

4. Race remains a prominent and ______ issue in the United States, which has struggled to overcome a legacy of slavery and discrimination.

51. The author’s attitude towards divorce may best be described as “______”.

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

21.