1. Stefania, perché non (dire, a noi) che avevi fatto domanda per partecipare al talk show del sabato sera?

put "tell us" at the blank line.

Explanation:

It makes more common writing easier.

nobody knows everything, but parents are normally more experienced than their children based off of worldly experience despite the fact that a child might think that they know better than their parent in any given situation this might just be caused by ignorance and lack of experience.