"Until now, do you cook or does she cook?"

Translation: Fino ad ora, cucini tu o cucina lei?

[thenino85]

Why wasn't "Fino a ora, cucini tu o cucina lei?" accepted as well? I was under the impression that many people use "ad" only in formal writing. Am I wrong?

[ruth-mac]

I think people say it both ways, but my tutor always insisted on "ad" before a vowel.