29. ______ is known to everybody, the moon travels round the earth once every month.

42. It’s implied in the passage that the author may be _____. 

36. Dr. Aiken cut the background from the photos for the purpose of______.

41. The passage is mainly about the differences between British English and American English in _____. 

19. You cannot accept an opinion ______ to you unless it is based on facts.

Part Ⅴ Applied Writing (20 Points)Directions: This part is to test your ability to do practical writing. You are required to write a Certificate of Employment according to the information given in Chinese below. You should write your letter (no less than 100 words) on the Answer Sheet.假如你是李明，你的学生李伟华想在你的美国朋友约翰逊教授的大学申请一个职位，请写一封推荐信以帮助他成功通过申请。

10.

30. Scientists have obtained more evidence ______ plastic is finding its way into the human body.

25. I keep the picture where I can see it every day, _____ reminds me of the days in my hometown.

3.

Conversation 29.

21. ______ the course very difficult, she decided to move to a lower level.