Bonjour!
Réponse :
1.
-Kate! Where are you. What are you doing?
-In my room Mum, I'm wrinting an essay.
-Is your sister working with you?
-No, she isn't. She's listening to music in her room.
2.
1.Yes, they are.
2.No, it's not.
3.Yes, she is.
4.No, they aren't.
Explications :
Tu as eu bon au premier du 2!
Pour le présent en be+ING, on conjugue le verbe "be" (être) avec le sujet concerné:
I am
You are
She is
He is
It is
We are
They are
Puis on rajoute "ing" à la fin du verbe.
ex: Alice est en train de jouer -> Alice is playing.
J'espère que ça t'aidera! :)