Museums in Los Angeles are busy thinking of new ways to work together.

I told him I was too busy thinking and reading.

Archer would have told him to shut up again, but he was too busy thinking.

We won't have time to feel depressed, for we'll be too busy thinking of ways to spend all of our money.

We stared at each other, both of us busy thinking.

Not because the answer wasn't yes, but because I was too busy thinking.

I was much too busy thinking, my mind in a whirl.

Domingo scarcely heard them; he was already busy thinking, trying to make plans.

Even now, economists are busy thinking of ways to rewrite the pact.

I was busy thinking and I didn't see him come up.