You're Michele. (?)
Are you Michele?
Are cats and dogs happy? (+)
They are happy.
You're not tired. (?)
Are you tired?
Are you from Poland? (-)
You're not from Poland. / You aren't from Poland.
You're in my class (-)
You aren't in my class.
Is Leo Di Caprio from Berlin? (-)
He isn't from Berlin.
They're from Brazil. (?)
Are they from Brazil?
I'm Jenny. (-)
I'm not Jenny.
You're a teacher (?)
Are you a teacher?
Is Shakira married? (-)
She isn't married.
He's not Chinese. (?)
Is he Chinese?
He's from Switzerland. (?)
Is he from Switzerland?
I'm in room 311. (?)
Am I in room 311?