Select the option that expresses the given sentence in passive voice.
The man was repairing the tyres of his car.

Correct option is B

The tyres of his car were being repaired by the man is the correct passive voice transformation, reflecting the continuous action in the past being performed by someone else.
· 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.
Conversion rule: Subject + was, were + verb + ing + object -> <- Object + auxiliary verb (was, were) + being + past participle + by + subject.