Respuesta:
N: Laura isn´t happy
I: Is Laura happy?
N: Ben and I aren´t in the swimming pool now
I: Are Ben and you in the swimming pool now?
N: Lucas isn´t 26 years old
I: Is Lucas 26 years old?
N: They aren´t my teachers
I: Are they your teachers?
N: Paola isn´t in the party with her friends
I: Is Paola in the party with her friends?
Explicación: Espero que te haya ayudado