-What's going to happen?
-I don't know. [...] knows.

-Do you know [...] in London?
-Yes, a few people.

-What's in that cupboard?
[...]. It's empty.

I'm looking for my glasses. I can't find them [...].

I don't like cold weather. I want to live [...] warm.

Is there [...] interesting on television tonight?

Have you ever met [...] famous?