I. 1-5 BBCBC
II. 1. reading 2.badly 3. visitors 4. hosted5. ourselves
III. 1. are a symbol 2. stand for 3. at least
IV. 1-5 TFTTF
V. 1-5 ACACC 6-10 ABCCB
VI. One possible version:
The 29thOlympics has been over. Beijing is getting moreand more beautiful. And therewill be more foreigners in Beijing. We should plant more trees andgrass. Weshould improve our environment. We should do more exercise to buildourselvesup. We should make our country strong. Everyone in China should befriendly tothe people all over the world.