Select the most appropriate options from below which changes the following active sentences into passive voice.

His grandmother looked after him.

The correct answer is: He was looked after by his grandmother.

Key Points

• The subject of the Active Voice is changed into the object of the Passive voice. Also, the object of the Active Voice is changed into the subject of the Passive Voice.
• The usage of a helping verb is necessary while changing the voice of the sentence from Active to Passive.
• The preposition “by” is used before the object made in Passive Voice. However, it is optional in some cases.
• The Active voice in this question is in Past Indefinite. Thus, the Passive voice will also be in Past Indefinite.
• The format of Active voice is: Subject + V2 + Object.
• Thus, in Passive voice, the format will be: Object of the active voice (Subjective case) + was/were + V3 + by + Subject of the active voice (Objective case).
• For example:
  • Real Madrid won the Champions League. (Active Voice)
  • The Champions League was won by Real Madrid. (Passive Voice)
• In questions like this, the preposition is kept intact with the verb while transforming the sentence in Passive Voice. In this case, 'looked' must be followed by the preposition 'after'.
• The options except (4) don’t follow the correct grammatical format of the Passive Voice.

Therefore, the correct answer is: