22. Only three days ago______ the mistake I’d made the other day.

　　　 A. did I know　　　　　　　　　 B. I knew　　　　　　　　　　　　 C. do I know　　　　　　　　　 D. I know

第一节：单项填空(共15小题；每小题1分，满分15分)

21. - Liu Xiang will win another gold medal in Beijing in 2008. 　- ______.

　　　 A. There’s no doubt with it.　　　　　　　　　　　 B. It’s no doubt with it.

　　　 C. It has no doubt with it.　　　　　　　　　　　　 D. There’s no doubt about it.

Saving Our City

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在世界环保日到来前夕，联合国教科文组织就如何处理垃圾问题向全世界中学生征文。请你以Saving Our City为题，写一篇110词左右的短文。文章的第一句已给出，但不计入总词数。

提示：

1. 城市垃圾的危害：①污染环境；②有害健康。

2. 处理垃圾的措施有：①垃圾分类；②报纸、玻璃的再利用；③有害垃圾的处理；④废水处理；⑤制定法律。

Saving Our City

It is very important to deal with the rubbish in cities...

99. _____________　　　　　　　　　　　　　　 100.____________

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