根据所给单词在空格填入正确的单词形式。

1. My birthday is October _____.(two)

2. _____(Jack) birthday is in November.

3. This is the _____(twelve) apple.

4. My number is _____(nine).

5. —How much _____(be) the shoes? 

   —25 dollars.

按照安装方式分，灯具可分为（）和（）。