16. I see no reason why they shouldn’t go on playing for another four or five years ______ they are fit enough. 

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

45. What does Sam Boakye’s remark mean?

33.磊磊参加的合唱团少来了一个人，没人发现，但今天少来了两人，磊磊一下就发现了，这说明磊磊（ ）能力强。

30.

18. Both approaches agree on what is depicted in the poem, but not how it should be ________.

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

44. What can we learn from some recent studies ________

28.

24.

3.We work to make money, but it’s a ________ that people who work hard and long often do not make the most money.

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.