What's this?
It's a ruler.
What's this?
It's a book.
What's this?
It's a pencil.
What's this?
It's a pen.
What colour is this this?
purple
What colour is this?
blue
What colour is this?
green
What colour is this?
yellow
What colour is this?
red
What colour is this?
orange
What colour is this?
black
What colour is the dog?
white
What colour is this?
pink
What colour is this?
brown
