Let's take a look at several that keep popping up.

So that keeps popping up, and then we get it right.

They keep popping up on my computer without an invite.

Your name keeps popping up, and besides, you're getting short.

Why did two and three keep popping up in all this?

"The more I learned, the questions just kept popping up," he said.

So just how is it, then, that they keep popping up?

I don't see how he can keep popping up like this if he's dead.

The letters keep popping up after the keys are hit.

The problem was, the same items kept popping up in both columns.