What are you doing now?
I am studying now. (we are studying now)
Is he old?
No, he is not. He is young.
My mother is cooking. (make negative)
My mother is not cooking.
Where is the boy?
he is between the balls.
Where is the boy?
He is behind the sofa. (armchair)
(This / these) girl is thin.
this
What are they doing?
They are dancing.
Where is the cat?
The cat is in the box.
What is he drinking?
He is drinking coffee.
Where is the girl?
She is under the table.
