What's this ?
It's a chair .
What's this ?
It's a crayon .
What are they (2 things )?
They are notebook and pencil .
What's this ?
It's a notebook .
What are they (2 things )?
They are table and chair .
What's this ?
It's a desk .
What are they (2 things )?
They are notebook and crayon .
What's this ?
It's a pencil .