1.
"le" is third person singular, so it goes with "el", "ella" or "usted".
A usted le gusta leer.
2.
"preferimos" is first person plural, so it goes with "nosotros" or "nosotras".
Nosotros preferimos leer.
no me gusta oler los calcetines.
explanation:
you can say i dislike to smell socks in spanish. this would be ''no me gusta oler los calcetines.''