What is cat doing?
It is chasing.
What is the cat doing?
It is feeding.
What is it doing?
It is hunting.
What is it doing?
It is flying.
What is the it doing?
It is eating.
What is the dog doing?
It is digging.
What is cat doing?
The cat is attacking.
What is the man doing
He is building.
What is it doing?
It is protecting.
What is he doing?
He is hiding.