A)
1. Quiso
2. Estuvieron
3. Puse
4. Viniste
B)
1.andaban
2. Hacia
3. Pude
4. Tenías
5. Sabían
6. Vino
Hablar would go in the blank. Though lots of words can.
Alli esta is grammatically correct. It is correct because alli esta means "there is" and in your example, There is the first floor, sounds better. The first floor is there doesn't sound correct to me. Hope this helps.
She doesn’t mention shaving her legs.