根据句意及首字母或汉语提示，填写句中所缺的单词。

1. There are __________________ (较少的) apples in this basket. I prefer that one.

2. Both of my best friends were born in ________________ (十月).

3. We are often told not to be __________________ (紧张的) in the examinations.

4. On my ________________ (第九) birthday, I got a computer from my aunt.

5. The camera was one of the greatest _________________ (发明) in the 19^th century.