Bonjour!
Réponse:
Cruella De Vil is the villain in the Walt Disney film 101 Dalmatians. She is an extravagant lady and she wants to use the skin of 99 puppies to make a fur coat.
Bellatrix is a witch in Harry Potter's world. She is a tall woman and a member of House of Black. She is the sister of Narcissa Malfoy and enemy of Harry.
Explications:
On utilise "a" devant un mot au singulier commençant par une consonne.
On utilise "an" devant un mot au singulier commençant par une voyelle.
On n'utilise rien devant un mot au pluriel.
exemple pour "a": She has a friend.
exemple pour "an": He's an old man.
exemple pour rien: They're siblings.
En espérant aider :)