What is she doing?
She's skiing.
What are they doing?
They are camping.
What is she doing?
She's sleeping.
What are they doing?
They're dancing.
What are they doing?
They are drinking coffee. / They are chatting. / They are drinking tea.
What is she doing?
She's cleaning the floor. / She's mopping the floor.
What is he doing?
He's running. / He's jogging. / He's exercising.
What is he doing?
He's singing.
What are they doing?
They're watching TV.
What is she doing?
She's washing (the) dishes. / She's doing (the) dishes.
What are they doing?
They're shopping. / They're shopping for food. / They're shopping for groceries. / They're grocery shopping.
What is she doing?
She's cooking. / She's making dinner.
What is he doing?
He's surfing.
What are they doing?
They're hiking. / They're backpacking.
What is he doing?
He's swimming.
What is she doing?
She's studying. / She's doing homework.
What is he doing?
He's reading. / He's studying.
What are they doing?
They're playing basketball.
What are they doing?
They're eating.
What is he doing?
He's walking a dog. / He's walking his dog.
What is she doing?
She's playing (the) guitar.
What is he doing?
He's riding a bike. / He's riding a bicycle.
What is he doing?
He's working. / He's doing homework.
What is he doing?
He's listening to music.