Spanish Object Pronoun

Can you show it (m) to us?

My brother sees it (f).

Recite them to me!

He is listening to you (informal).

John does not understand her.

You (pl.) need to explain the reason to them (f.)

I never write to him.

Don't explain it (m.) to me!

You (pl.) are giving them to us.

I pass them (f.) to the teacher.

Can you (informal) sell it (f.) to me for 25 dollars?

I am not selling it for 25 dollars.

They want to prepare it (m.) for their brother.

He doesn't want to bring them (f.) to me.

You always write to me, but you never write to her.