enough ·phrase

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是不请自来的。

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

我预测会下雨，果然，天空变暗，大雨倾盆。

I predicted it would rain, and ___sure ___enough, the sky darkened and the downpour began.