Resposta:
a) My sister isn't writting a letter
b) His brothers aren't playing golf
c) The bunny isn't eating a carrot
d) Tim and Tom aren't sleeping
e) Our friends aren't singing
f) Those women aren't dancing
g) My hamster isn't running
h) Her dog isn't barking
i) The woman isn't looking at me
(se quiser pode mudar o isn't para is not, e aren't para are not)
