"Sie mag Orangen, oder?"
I don't quite get why 'oder' would be translated as 'doesn't she', so I can only imagine this is a short way of saying a complete sentence like "Does she like oranges or doesn't she like them?" or "She likes oranges or doesn't she like oranges?" or whatever else. If I am right, how would the complete sentence be in German? If I am wrong, would someone please explain me exactly what happens in the sentence? :)