Please help with my spanish correction, my teacher is giving me a hard time on this assignment, and help would be appreciated :) Answer the following questions using both a direct and indirect object in your response. Follow the example.
Example: ¿Cocinas la comida para tu familia? Do you cook the food for your family?
Sí, se la cocino. Yes, I cook it for them.

20. ¿Escribes el correo electrónico a su amigo?
my Sí, les escribo.
teachers message: el correo electronico is the direct object
a su amigo is the indirect object. What are their pronouns? Where do they belong?
21. ¿Compras la bebida para tu hermana?
my Sí lo compro para ella.
teachers message: la bebida is the direct object
para tu hermana is the indirect object. What are their pronouns? Where do they belong?

thank you :)