Select the correct passive form of the given sentence.
His father had already bought the train tickets.

Correct option is A

· Active Voice- Active voice is a grammatical structure in which the subject of the sentence performs the action expressed by the verb.
· Passive Voice- Passive voice refers to a grammatical construction where the subject of a sentence undergoes an action rather than performing it. In passive voice sentences, the emphasis is on the recipient or object of the action.
· Correct answer is “The train tickets had already been bought by his father.”
This option correctly converts the active voice into the passive voice, accurately reflecting the past perfect tense used in the original sentence.
· Conversion rule: Subject + had + V3 + object -> <- Object + auxiliary verb (had) + been + past participle + by + subject.