Who's this?
granddaughter
What is she doing?
She is playing the trumpet.
Who's this?
son
Who's this?
grandson
What is the dog doing?
It is playing the drum.
What is the robot doing?
It is playing the guitar.
What is the cat doing?
It is playing the piano.
What is he doing?
He is playing the flute.
What's this?
flute
Who's this?
wife
What's this?
piano
What's this?
guitar
What is the crab doing?
It is playing the violin.
What are they doing?
They are dancing.
Who's this?
daughter
What's this?
violin
Who's this?
husband
What are these?
drums
What's this?
trumpet