It's a green ruler.对 a green ruler提问()is it.

问题描述:

It's a green ruler.对 a green ruler提问()is it.
I'm ok.对ok提问()?
The pen is red.对red提问.()is the pen.
It's a key.对key提问.()it.
It's a white jacket.同义句()jacket is()

What is it?
How are you?
What color is the pen?
What's it?
The jacket is white.