Jim and Robert were the only pair not to produce a single line of sausages.

Am I the only clever pair of eyes and ears he can call on?

By the way - the only pair in the store.

They are the only pair of men to have ever finished four consecutive calendar years at the top.

The only consistent pair of beliefs is when each thinks the other will say 180.

My lab partner and I were the only pair to get the brain out whole.

The Williams sisters were the only pair to really looked comfortable.

Mates for life, the only pair of its kind sharing this ecosystem.

"They are the only matched pair that has survived from this culture."

She and her sister are currently the only pair of sisters in the Commons.