Is this knife sharp?
Yes, it is.
Do we need to sharpen this pencil?
Yes, we do.
What are you doing?
I am emptying my cup.
My TV is off. I need to...
...turn on my TV.
Do we need to sharpen this pencil?
No, we don't.
What is he doing?
He is putting on his pants.
Is this knife sharp?
No, it's not.
I'm tired. I need to...
...turn off my TV.
What is she doing?
She's taking off her shoes.
What are you doing?
I'm reading.
Is this glass full?
No, it is empty.