The "Yo" was in there for Lavos^' benefit, I do know that it's a bit redundant, but those who know pretty much nothing about Spanish find it helpful. And, not to be picky, but I was meaning to say "I like the hamburger", as pointed out after the spanish version.
...Not to argue with someone who should obviously know the language a lot better than I would 
Estoy tomando clases de español en mi escuela. He tomado español por 4 años, y continuaré por 2 anos mas. No sabe sobre colegio.
Heh, yeah, I didn't see it that way (on both, the hamburger and "Yo" things).
Also, they teach you spanish really well at your school, much better than they teach english on my school. Geez, you should listen how kids think english is when they finish school... ("Hi, me ViRUS, where's toilet" "Red car fast"... sometimes I want to hit those guys...

)
Tu español es muy bueno, te lo enseñan muy bien en tu escuela. ¿Te gusta el idioma o lo estudiás sólo por la escuela?
Oh, and what did you mean by "No sabe sobre colegio."?