What are they doing?
They are eating
He _____ going to school.
isn't
is
She _____ drinking
isn't
is
They _____ playing tennis.
aren't
are
What is he doing?
He is watching TV.
What is he doing?
He is running
What are you doing?
I'm swimming
What are you doing?
I'm drinking
He _____ playing tennis.
is
isn't
The cat ___ playing
is
isn't
What are you doing?
I'm eating
What is she doing?
She is reading (a book)
They _____ watching TV
aren't
are
What are you doing?
I'm running
What is he doing?
He is playing tennis.