What are you doing?
Personal answer using Present Continuous (I + to be + verb + ing).
What are they doing?
They are taking a shower.
Is Wonder Woman washing her hands?
Yes, she is.
Are the Titans playing videogame?
Yes, they are.
Is Batgirl falling?
Yes, she is.
What is Darth Vader doing?
He is brushing his teeth... well, his vent.
Is Lea looking at you?
No, she isn't. She is looking at Han.
What is Yoda doing?
He is smelling the perfume.
Are they watching a movie at the movies?
Yes, they are.
Is Robin riding a bike?
No, he isn't. He is driving a car.
What is Wonder Woman doing?
She is riding a horse.
Are they eating milkshake?
No, they aren't. They are drinking milkshake.
Is Superman sleeping?
No, he isn't. He is listening to music.
Is Batman reading?
Yes, he is.
What is Luke doing?
He is laughing.
Is Aquaman flying?
No, he isn't. He is swimming.
Is Supergirl running?
No, she isn't. She is sleeping.
What is Joker doing?
He is taking a picture.
What is Flash doing?
He is running.
Is Superman swimming?
No, he isn't. He is flying.
Are Anakin and Obi Wan fighting?
Yes, they are.
Is Batman washing his hands?
No, he isn't. He is singing.
What are they doing?
They are eating pizza.
Is Hulk smashing?
Yes, he is.
Is Spiderman sleeping?
No, he isn't. He is jumping.