To me, "Péter lát kint egy épületet" sounds more natural than "kint lát". Any other hungarians agree with me on this? The word order "kint lát" only sounds good when you'd like to emphasize that he sees it outside, not inside: "Péter kint lát egy épületet (, nem bent)" = "Péter sees a building outside (, not inside)"
If I say, "I see a building outside", it means that there's a building I'm seeing and the building is outside.
If I say, "Outside, I see a building", it means that I'M outside and while I'm out there, I see a building. (I think)
How do I distinguish these meanings in Hungarian?
In fact it's pretty hard to distinguish those meanings in English! I'm a native speaker and I hear your second sentence as synonymous with the first.
To give the second meaning in English you'd need to say something like "When I am outside, I see a building."
(As an aside, I'm curious about what building you would see inside another one...)
This isn't something that could be dealt with by mortals who read these discussions. :) Apparently, something has changed about the way you get the exercises - for me, "write a sentence in Hungarian" tasks only appear at the end of lower levels and I have the impression that they only appear when I barely make mistakes in the earlier exercises.