"Are these American airplanes taking off from a river or from a sea?"
Translation:Ezek az amerikai repülőgépek folyóról vagy tengerről szállnak fel?
And here we are with the perfect question to follow on from my previous comment. No need for "egy" on 2 occasions and yet I had a question where "egy" was compulsory for flying onto "a mountain." The red error came up and told me I'd missed out a word and there it was, "egy," complete with the underlining. Am I right in thinking that it's actually optional?