What is she doing at the movie theater ?
She is watching a movie.
What are they doing at the park?
They are kicking a ball.
What is she doing?
She is borrowing books.
What is he doing at the supermarket?
He is buying groceries.
What is she doing at the post office?
She is mailing letters.
What are they doing at the department store?
They are shopping.
What is he doing at the library?
he is reading books.