Are these correct examples of direct, indirect and double object pronoun use?

Question

I've been trying to create my own examples to study for a Spanish 2 test tomorrow because the book doesn't have many. Could you please tell me if they are correct, or what I need to fix?

1. Yo lo escribe. = I write it.
2. Nosotros los miramos. = We saw them.
3. Tú nos visitas. = You visit us.
4. ¿Lo conoces tú? = Do you know him?
5. ¡La hablas! = Say it!
6. ¡Recítalos! = Recite them!
7. Yo quiero comprenderlo. = I want to understand it.
8. Ella necesita darlas. = She needs to give them.
9. Tú tienes leerlo. = You have to read it.
10. ¡Pásamelo! = Pass it to me!
11. ¡Repítemelos! = Repeat them to me!
12. ¡Háblanosla! = Say it to us!
13. ¿Te lo Enseña él? = Does he show you it?

Answer 1

"Yo lo escribe" isn't right. "I write it" is "lo escribo" or "yo lo escribo."

"Do you know him?" is ¿Tú lo conoces?

"Say it" is "Dilo!"

"You have to read it" is "Tú tienes que leerlo."

¡Háblanosla! is wrong

and I think Does he show it to you is "¿le enseñate?"