A hundred feet ahead, a dog trotted along the side of the road.

When she opened the door the dog trotted in, and I followed.

The big dog trotted to one side and sat laughing at their feet.

The dog glanced toward the two boys, then trotted on.

A dog was trotting along the sidewalk out in front.

The dog trotted past her, as did the tall horse.

The dog that had remained at the hut trotted after him.

A dog trotted across the road and stopped to smell some bushes.

His little dog trotted along in front of him.