On a sudden impulse he told her the whole story.
With sudden impulse she rose and went to the door.
He was given to sudden driving impulses, and reason had no part in them.
On a sudden impulse he decided to check the river first.
Following a sudden impulse, he asked the girl what she had thought about the hostages.
With a sudden impulse she looked at herself in the glass.
"We don't have much time," said Took, feeling the sudden impulse to act building up in him.
He felt a sudden impulse to touch the fine black hair.
This sudden impulse to get away had come over me the night before.
"We want to leave in the morning," I said on a sudden impulse.