Can you see number zero?
Yes, I can.
Where are they?
They are at the zoo.
That's a....
zebra
What number is this?
zero
That's a....
zebu
Can you see number zero?
No, I can't.
Do you like the zebra?
Yes, I do. / No, I don't.
Do you like the zebu?
Yes, I do. / No, I don't.