a) I am a taxi driver.

Negativa: I'm not a taxi driver.

Interrogativa: Am I a taxi driver?

b) She is a babysiter.

Negativa: She isn't a babysitter.

Interrogativa: Is she a babysitter?

c)They are my favorite books.

Negativa: They aren't my favorite books

Interrogativa: Are they my favorite books?

d) You are eating the cake he gave me.

Negativa: You aren't eating the cake he gave me.

Interrogativa:  Are you eating the cake he gave me?

e) He is a gentleman.

Negativa: He isn't a gentleman.

Interrogativa: Is he a gentleman?

Explicação:

Espero que ajude