ESL, Средно ниво

Say vs. Tell

I've ......... you not to do that many times before.
That ........., they walked out of the room in total silence.
You shouldn't take any notice of that because it's only hear..........
That's what people are always ..........
What I ......... and what I do are not necessarily the same.
It's no good trying to persuade me because I'm not ......... a word.
Now that would be ......... but my lips are sealed.
I'm afraid I can't ......... for sure but I think it's safe.