4) Write sentences into contracted negative form. (Escreva as sentenças na forma negativa abreviada) – isn’t / aren’t.

a) The blue car is new.

The blue car isn’t new.

b) I and my friend are happy.

I and my friend aren’t happy.

c) He is in the library.



d) Susan is my neighbor.



e) We are doctors.



f) They are students