20. The new stadium being built for the next Paralympic Games will be ____ the one that has been destroyed.

37. Why is space junk considered a problem?

65. 尽管互联网技术现在已经十分先进，但是在一些发展中国家互联网在普通用户中还远远没有普及。

46.The exhibition begins on   46   and lasts for 5 days. 

32. You have been working on this morning. It‘s time you ____ .

44. Who plays the most important role in Father’s Day becoming a national commemorative day?

66. Great writers are those who not only have great thoughts but also express these thoughts in words which appeal powerfully to our minds and emotions. This charming and telling use of words is what we call literary style. Above all, the real poet is a master of words. He can convey his meaning in words which sing like music, and which by their position and association can move men to tears. We should therefore learn to choose our words carefully and use them accurately, or they will make our speech dull. 

61. 真正的友谊就像健康一样，失去了才觉得宝贵。

（  ）53. In addition to being a source of income, our jobs define who we are in the world.

4.

( ) 14. Usually the poor countries decide the prices of natural resources.

( ) 13. A lot of the world’s natural resources come from the poor countries.