Rewrite the following sentences changing the objeto directo (underlined is ~inbetween~) to a pronoun (in some instances you may need to change the objeto indirecto to "se"):
8. Me compras ~el regalo.~

9. Le doy ~la silla.~

10. Eduardo lee ~el libro.~

11. Le mandamos ~la carta.~

12. Nos manda ~la carta.~