I said, my voice trailing off as she shut the door behind her.

Her voice trailed off, as though she'd just realized what she had said.

Her voice trailed off, and in the silence he got up to go.

At the look on her face, his voice trailed off.

Her voice trailed off as she read the answer in the woman's dark eyes.

The voice trails off as he comes within arm's reach.

He's about to say something else, but his voice trails off.

His voice trailed off as if he didn't want to talk about it any further.

The voice trailed off, as if he was looking over his shoulder.

His voice trailed off and he was quiet for a moment.