Ⅰ. 根据句意及首字母提示完成单词(10分)
1. There are at l_____ eight hundred students in our school.
2. He was late again because of the busy t_____.
3. You could write a thank-you n_____.
4. My cousin is a little b_____. He is only ten months old.
5. Many of the boys are f_____ of Jackie Chan.