39. From the passage we can draw the conclusion that ______.

（ ）53.Dan is interested in taking wildlife photographs and enjoys the kind of programme which gives him a chance to see a professional photographer at work.

62.大多数父母所关心的是，尽可能为孩子提供最好的教育。

45. Which of the following is WRONG according to the passage?

23. If we ______ adequate preparations, the conference wouldn’t have been so successful. 

57.众所周知，贸易和专门化相辅相成，使我们每个人能使用更多的产品。

7.

48. Any worn clothing or ______ will produce bacteria used bath towel

43. In the author’s opinion, _____. 

（ ）12. The company was set up 15 years ago.

（ ）13. The products of company are sold only at home.

33. Better take a hat with you ______ you get sun burnt because of the strong sunlight.