Réponse:
coucou
a) We are preparing for a Halloween party.
b) The makeup artist is not using powder.
c) Is the actor running away from the stage?
d) The assistants aren't creating new faces.
e) Are the models enjoying the makeup session?
Explications:
a) are+preparing
b) is+using (not)
c) is+running
d) aren't (are not)+creating
e) are+enjoying