Answer:
1. Algunas
2. Algun
3. Ningun
4. Ninguna
5. Ningun
Explanation:
I have spoke Spanish my whole life. These should be correct, if not I'm sorry!
*Los mandatos informales
-"Escribe (tu) la tarea"
-"Compra (tu) los libros"
*Los mandatos formales
-"Haga (Usted) la tarea"
-"Compren (Ustedes) los libros"
There could be many answers.
For example:
Tomaron
Robaron
Tocaron
But I think the right answer would be....
Ayer, Roberto y Carlos gastaron 12.000 pesos.