He turns to see a pair of young men, with a woman between them.

He had never before in his life seen a pair of legs like those.

I dropped, looked under the car and saw a pair of feet.

He glanced back and saw a pair of them now.

He saw a large pair of eyes staring back at him.

He turned and saw a pair of green eyes staring at him.

Suddenly, I looked up and saw a pair of green eyes staring back at me from no more than ten feet away.

Then he saw a pair of boots standing a few feet away.

David couldn't remember ever having seen such a weary pair of eyes.

She could see a pair of feet sticking out from beyond the little table.