With rain beating down on the hood and roof, she had to concentrate intently to hear.

They all had jobs to do and concentrated on them intently, efficiently.

The two characters concentrate intently on the task before them.

He had his back to Curtis, concentrating intently on the monitors.

I was concentrating so intently, I must have attracted attention to myself.

He was concentrating intently on something between his feet.

The others concentrated intently on the work they had to do as the machine circled the city.

Both men were concentrating intently on a playing board set between them.

Every man in the plane was concentrating intently on the displays before him.

Most concentrate intently on keeping their candles lit while they march.