He stood for a moment in thought; the boy's answer had not been unintelligent.
He stood for a moment, head bowed as if in deep thought.
Lee turned around to face the room from where he had been standing deep in thought for the last few minutes.
Just inside the porch he stood still for some moments, as if in thought, looking before him.
Several minutes passed while he stood motionless, deep in thought.
He took it, and stood for a moment in thought.
Bolt was standing on a corner as if deep in thought.
I could feel him high above me, standing in thought.
After hanging up, Tom stood for a moment deep in thought.
Coming back to the table he stood for a few minutes in deep thought.