Choose the correct one:A child could not have done this mischief.
Correct answer: C. This mischief could not have been done by a child.
- A. This mischief could not be done by a child.
- B. This mischief could not been done by a child.
- C. This mischief could not have been done by a child.
- D. This mischief a child could not have been done.
Explanation
In passive voice, the object 'this mischief' becomes the subject, and the verb phrase changes to 'could not have been done' to retain the original tense and meaning, with 'by a child' as the agent.
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