What is he doing ?
playing tennis
What is he doing ?
catching a ball
What is she doing ?
babysitting
What is he doing ?
playing the guitar
What is he doing ?
hitting a ball
What is he doing ?
throwing a ball
What are they doing ?
sleeping
What is she doing ?
singing
What is she doing ?
skipping
What are they doing ?
riding a bike
What are they doing ?
running
What are they doing ?
jumping
What is she doing ?
kicking a ball
What is she doing ?
skating
What are they doing ?
dancing
What is she doing ?
swimming