use Alert in a sentence
The patient was awake and alert about 3 hours after undergoing surgery.
Someone had better alert the police; we’ve been robbed.
You have to be very alert if you are driving at night in heavy rain.
Police have warned people to keep on the alert for a cougar which has been sighted in the area.
The robber was spotted by an alert neighbor, who noticed him trying to climb in a window.
The school has been working hard to alert children to the dangers of talking to strangers.
He wasn’t very alert in class today because he hardly slept at all last night.
The day Sophie was born she was amazingly alert and aware of everything around her.
Charles Tobey once said that a democratic government is only as strong as the alert conscience of its people.
The Armed Forces have been put on full alert amid rumors of a planned terrorist attack on the White House.