Is "ulo" gender-specific? Wouldn't the phrase above mean "old person"? I put maljuna viro and it said it is wrong.
I think it's just wrong.
Out of curiosity, why does Duo suggest "sin" precede the verb?
I think it's showing that the order isn't important, and that the accusative on it shows the 'direction' of the verb.
Ah, yes, and it is like you have said about the order.
"ripeti" is a transitive verb, so needs an object. And that is "sin" (reflexive), refering back to the subject of the first clause.