She's worked hard and her voice became better than ever.

His voice is becoming the key one in trying to set the terms for a new international discussion about the war.

Her voice had become confidential, even though they were clearly alone.

Her voice had become serious, and for a few minutes they ate in silence.

The harder he tried, the more remote her voice became.

But Lee's voice had become so small and thin, it was lost in the wind.

He was surprised at how earnest his voice had become.

When he recorded in 1930, his voice had become deeper.

His voice became louder, more formal, as he ran through the call.

His voice has become richer and stronger as a result.