他说书在他的桌子上，果然，它就在那里。

He said the book was on his desk, and ___sure ___enough, there it was.

果然，这些具有挑战性的问题大多时候不请自来。

And ___sure ___enough, these challenging problems come unsolicited most of the time.

我以为今天会下雨，果然，下午开始下起了倾盆大雨。

I thought it would rain today, and ___sure ___enough, it started pouring in the afternoon.