用所给词的适当形式填空。

1. How many _______ (student) are there in your class?

2. Have you _______ (get) any aunts?

3. My father's got a brother, but my mother __________ (not have got) a brother.

4. There are four people in my family－my father and mother, my sister and _______ (I ).

5. We have got 24 _______ (classroom) in the building.