The active voice sentence is "Meenu will return the book." Choose the option that best expresses this sentence in the passive voice.

Introduction / Context:
This question tests the candidate's ability to transform a simple future tense sentence from active to passive voice. The original sentence focuses on the subject "Meenu" performing the future action "will return the book." In the passive version, the focus moves to "the book" while keeping the future time reference intact.

Given Data / Assumptions:

• Active sentence: Meenu will return the book.
• Subject: Meenu.
• Object: the book.
• Verb phrase: will return (simple future tense).
• The action has not yet occurred but is expected to happen in the future.

Concept / Approach:
The passive form of a simple future tense sentence uses the structure: subject (former object) + will be + past participle. Here "the book" becomes the subject in the passive sentence. The verb "will return" changes to "will be returned," and the agent phrase "by Meenu" is added at the end. This structure preserves both the meaning and the future time reference.

Step-by-Step Solution:

Step 1: Identify the object "the book," which will serve as the new subject in the passive sentence. Step 2: Recognise that the verb phrase "will return" is in the simple future; passive voice requires "will be returned." Step 3: Attach the agent phrase "by Meenu" after the verb phrase to show who will perform the action. Step 4: Combine the elements to form the passive sentence: "The book will be returned by Meenu."

Verification / Alternative check:
The sentence "The book will be returned by Meenu" correctly reflects the simple future passive structure. The meaning remains unchanged: at some future time, Meenu will perform the action of returning the book. The grammatical elements, including the auxiliary "will be" and the past participle "returned," are correctly used.

Why Other Options Are Wrong:

Option B: "Returning of the book will be done by Meenu." is grammatically possible but wordy and unnatural, using unnecessary nominalisation instead of a straightforward passive form. Option C: "The book would have been returned by Meenu." is in conditional perfect, which expresses a hypothetical past action, not a planned future action. Option D: "The book Meenu will be returning." is not a standard passive construction and sounds incomplete; it borders on an active future continuous idea. Option E: "Meenu is returning the book later." remains active voice and uses present continuous with a future time reference, not simple future passive.

Common Pitfalls:
Some learners try to keep the subject in front and just add "be" somewhere, resulting in incorrect structures. Others shift the tense away from simple future, using forms such as "would have been" or "is going to be," which change the time frame or nuance. To avoid confusion, always identify the tense first, then apply the correct passive formula "will be + past participle" for simple future.

Final Answer:
The correct passive voice sentence is The book will be returned by Meenu.