Well, his proof does leave one loophole.
There is a loophole in his proof.
There are no loopholes in his proof.
Beatty might be looking for an advantage in the political campaign.
Everybody is wearing formal clothes.
No, only on a flat course.
I have no children and didn't talk to any today.
I think there's no different between a unanimous verdict or any number of dissenters because the verdict is the same.
The workers are goofing off flirting with people walking by.