Here's why:
* Active voice: The subject (dog) performs the action (buried).
* Passive voice: The subject is acted upon. The sentence would be in the passive voice if it were "The bone was buried by the dog in the flower bed."
Here's why:
* Active voice: The subject (dog) performs the action (buried).
* Passive voice: The subject is acted upon. The sentence would be in the passive voice if it were "The bone was buried by the dog in the flower bed."