I think we'd better fill you in on a few points.

If you think you know who the murderer is, you'd better fill me in.

However, the commission decided that a man of more commercial training would better fill the position.

Maybe I'd better fill you in on what's happening here.

I think you'd better fill me all the way in.

Look, I'd better fill in a little background for you.

Maybe you'd better fill me in one some background.

But I think we better fill those tanks at the last minute.

You'll come to water, and you'd better fill your barrels.

And if you want help with this, you'd better fill me in.