Who is sleeping?
The boy is sleeping.
Who is it?
It's a girl.
Who is reading the book?
The boy is reading the book.
Who is writing the letter?
The lady is writing the letter.
Who is eating the icecream?
The girl is eating the icecream.
Who is on the slide?
The boy is on the slide.
Who is stacking the blocks?
The baby is stacking the blocks.
Who is painting?
The man is painting.
Who is it?
It's a boy.
Who is on the swings?
The girls are on the swings.
Who is kicking the ball?
The girl is kicking the ball.
Who is swimming?
The girl is swimming.