Question

. Pass to Interrogative form: Passe para forma Interrogativa: They are classmates. *
Are you classmates?
Are you a student?
Is she my classmate?
Are they classmates?​

Answer 1

Resposta:

Aren't you classmates?

Aren't you a student?

Isn't she my classmate?

Aren't they classmates?

Explicação:  Aren't e Isn't é abreviação, mas por extenso:

Are not you classmates?

Are not you a student?

Is not she my classmate?

Are not they classmates?

Bom estudo!