He walked quickly down the corridor.

Rou's smile brightly lit up the room.

The wolf lives alone in the forest.

He was sustaining himself with local cuisine during his trip.

I'm scared of growing old.

He is working all day long.

An old person was walking in the park.

My grandfather is being seen by a specialist in geriatric medicine.

An old person was playing with his grandchild in the park.

An old person was walking in the park.