He is the most competent employee of our company.

He is the guardian of our village.

He is a guard of the castle.

He went on a trip with his Croatian friend.

Lice are very troublesome pests.

He has many Western friends.

He worked as a middleman between us.

The onlookers raised their voices in surprise.

He was a captive of the enemy for a long time.

He is the custodian of this museum.