The police are continuing to search for the missing person.

I'm worried about his whereabouts unknown.

The rescue dog was helpful in searching for missing persons after the earthquake.

He is a famous author and a person who is respected by many people.

This app provides useful information for everyday life.

His advice was completely useless.

He rescued the child who got lost in the mountain.

He saved the drowning child.

He searched all over the room and found his lost wallet.

I am puzzled by the ignorance of his actions.