none

我不会讨论我的薪水；这不关你的事。

I won't discuss my salary; it's ___none of your business.

你可能觉得这不关我的事，但我关心你。

You may feel it's ___none of my business, but I care about you.

我晚上去哪里不关他的事。

Where I go at night is ___none of his business.