In a dull, flat voice, she told the rest of her story.
Peter read the words in a flat and mechanical voice.
The man with the flat voice was opening a new branch of the subject.
Or your friend with, the flat voice wouldn't have had a chance.
I tried to leave after that,' she said in a flat voice.
In the same flat voice she said, "I don't do this sort of thing."
In a low, flat voice, as if talking with himself, he said, "It doesn't matter whether you are right or wrong."
Someone else seemed to speak those two facts in a flat voice.
He was almost there when a flat voice said from behind him, 'This is a bar.
"And we could build this," said the flat voice on the radio.