His ears caught the sound of footsteps in another building.
George's sharp ears caught the sound of water and she went to look for it.
As he did so his ears caught a faint sound from above.
Suddenly his ears caught the same sound that he had imagined in the study.
His keen ears had caught a sound outside the door.
His ears caught nothing but the distant sounds of the city going about its business.
His quick ear had caught a sound outside the room itself.
She came around the table, and in full view of everyone gave him a kiss that made his ears catch fire.
Then at last, her quick ears caught the sound of movement.
Only one pointed ear and the side of her face caught the light.