Question

passee as frasses para a forma negativa e interogativa ;a-she is my teacher
b- they are classmates
c- maria and sandra are sister
d- he is my dentist

Answer 1

a-negativa: She isn’t my teacher.
Interrogativa: Is she my teacher?
b-negativa: They aren’t classmates.
Interrogativa: Are they classmates?
c-negativa: Maria and Sandra aren’t sisters.
Interrogativa: Are Maria and Sandra sisters?
d-negativa: He isn’t my dentist.
Interrogativa: Is he my dentist?
espero ter ajudado, bons estudos:)