I can guess on the rest, but I'd probably be wrong.

I think I'm not going to even try to guess on this one.

He did not tell her, though sometimes she guessed on his return.

He would have to guess right on the next heart lead.

I guess on high bar, it was a freak thing.

I guess on the whole he does more good than harm.

I guess, on a political level, it could be important to make that point.

They guess on a left turn instead of waiting for a clear intersection.

I've an idea you probably guessed that much on your own.

The players will guess on the performance of the other group's members.