He was ready to storm out of the apartments, and his grandfather knew it.

"These were lawyers who my grandfather knew for 40 years."

My grandfather didn't know quite what to make of me, but he was kind.

Then the talk turned to people whom grandfather had known.

"My grandfather, are you certain you know where this old power point lay?"

And my grandfather mustn't know that I've talked with you.

What's more, your grandfather must have known it was coming.

His father had never heard of the place either, but his grandfather knew right away what I was talking about.

"Now your grandfather knew how to treat his troops right."

The grandfather knew many of them, and clapped his hands as he recognized their names.