She looked up suddenly and caught his eyes upon her.

Once or twice she said yes, and looked up suddenly at me.

Then he looked up quite suddenly with tears in his eyes.

He looked up suddenly as the door to his office sprang open.

The girl looked up suddenly into the eyes of the American bending so close above her.

He suddenly looked up and caught her looking at him.

He looked up suddenly to see a young man who had come from the door beyond.

She looked up suddenly, as a man stopped and spoke to her.

Then he looked up suddenly with another lightning change of subject.

He suddenly looked up, as if taken with the idea.