当她提到新政策时，我完全不知道她指的是什么。

When she mentioned the new policy, I ___didn't ___have ___a ___clue what she was referring to.

没有说明书，我们完全不知道如何组装这件家具。

Without the instruction manual, we ___don't ___have ___a ___clue how to assemble this furniture.

他已经解释这个算法一个小时了，但我仍然完全不明白它是如何工作的。

He's been explaining the algorithm for an hour, but I still ___do not ___have ___a ___clue how it works.