Correct Answer:
D. The arm of the injured man was bandaged by the doctor
To change an active voice sentence to passive voice, the object of the active sentence becomes the subject of the passive sentence, and the verb form changes to 'to be' + past participle. The original subject becomes the agent, often introduced by 'by'.
- The active sentence is: 'The doctor (subject) bandaged (verb) the arm of the injured man (object).'
- The correct passive voice is: 'The arm of the injured man (new subject) was bandaged (passive verb) by the doctor (agent).' The verb 'bandaged' is past tense, so 'was bandaged' is appropriate.
- Option A and B change the meaning or structure incorrectly.
- Option C uses the present tense 'is bandaged', which is incorrect for the past tense action.