Sentence examples for must be joking from inspiring English sources

You must be joking!

He said.. you must be joking!

'You must be joking,' roars a Tory.

"You must be joking," I replied.

A. Like Uecker, he must be joking.

Piers said, "You must be joking!

I mean, you must be joking.

I think he must be joking.

"You must be joking," she says.

Surely Mickey Kaus must be joking (Op-Ed, May 5).

Or is it just me?" He must be joking.