i think that the variant autumn will be better
It's an American website that uses American spelling :)
It is indeed, but other courses accept British and Australian spelling as well. I don't see why the Ukrainian team would be against adding other variants.
Oh, they are usually accepted
Tell me why "осінь моя улюблена пора року'' is not correct?
It's a correct Ukr sentence, but it's rather "Fall is my favourite season". I think that's why it wasn't accepted
It's not like we don't use "autumn" in American English. I probably use the two terms in free variation.
Agreed. Fall is common but Autumn is used also. I think it should accept the variant.