They'd keep him alert for another twelve hours if necessary.

At least they wouldn't be alerting anyone about us for a few minutes.

He looked up and down the street, eyes alert for an ambush.

This morning my program alerted me for a second time.

Only if all four of us can stay awake and alert for the next eight hours.

The 211th was alerted for overseas movement to the Pacific in the fall of 1941.

I walked slowly beside the stream, eyes alert as always for anything useful.

The death of Darral should have alerted us, for one thing.

Patsy was at the door, already alerted for the arrival.

Randall was watching me, eyes alert for any signs of weakening.