Answer:
The boy was bitten by the dog.
Step-by-step explanation:
To change the sentence from active voice to passive voice, you need to make the object of the active sentence (the boy) the subject of the passive sentence. The subject of the active sentence (the dog) becomes the object of the passive sentence.
In this case, the active sentence "The dog bit the boy" becomes "The boy was bitten by the dog" in passive voice.
In the passive sentence, the verb "bit" is changed to "was bitten" to indicate that the action is being done to the subject (the boy) rather than the subject performing the action.
Note that in passive voice, the agent (the dog) is often introduced by the preposition "by," although it is not always necessary. In this example, the agent "the dog" is included with the preposition "by" to clarify who performed the action.