And then all she knew was the sound of breathing.

For a moment all Bob could hear was the sound of breathing.

I couldn't hear the sound of Bill's breathing in the next bed.

He didn't answer me, just the sound of his breathing on the phone.

I do not like the sound of his breathing at all.

At first, he could hear only the sound of his own breathing.

The men still couldn't see him, but he could hear the sound of their breathing only a few feet away now.

Not even the sound of their breathing could be heard.

She heard nothing but the sound of her own breathing.

He could no longer hear the fire for the sound of his own breathing.