Ⅰ. 根据句意及首字母提示完成单词（10分）
1. Please b _______ in yourself. You can do it well.
2. The m _______ idea of this text is helping others.
3. It is not s _______ to play football on the road.
4. The 2008 O _______ was held in the Bird’s Nest.
5. It’s the l _______ day of school. Tomorrow the school will be over.
