Understanding the Passive Sentence

The original sentence is in the passive voice: "All the books had been neatly arranged on the shelves by my grandfather."

• Subject (Passive): All the books
• Verb Phrase: had been neatly arranged (Past Perfect Passive)
• Agent (Object in Active): my grandfather
• Adverb: neatly
• Prepositional Phrase: on the shelves

Converting to Active Voice

To change a passive voice sentence to active voice, we follow these steps:

1. Identify the agent (the performer of the action) in the passive sentence, which is usually found after the preposition 'by'. In this case, it's "my grandfather". This agent becomes the subject of the active sentence.
2. Identify the subject of the passive sentence ("All the books"). This becomes the direct object of the active sentence.
3. Change the verb form. The passive verb "had been arranged" (Past Perfect Passive) must be converted to the active Past Perfect tense, which is "had arranged".
4. Keep other elements like adverbs ("neatly") and prepositional phrases ("on the shelves") in their appropriate places.

Applying these steps, the active voice sentence should be: "My grandfather had neatly arranged all the books on the shelves."

Analyzing the Options

• Option 1: "My grand father has neatly arranged all the books on the shelves." - This uses the Present Perfect tense ("has arranged"), which is incorrect. The original passive sentence uses the Past Perfect tense.
• Option 2: "My grand father had neatly arranged all the books on the shelves. " - This correctly uses the Past Perfect tense ("had arranged"), includes the adverb "neatly", and correctly identifies the subject ("My grandfather") and object ("all the books"). This matches our converted sentence.
• Option 3: "My grand father have neatly arranged all the books on the shelves." - This uses the incorrect verb form "have" with the singular subject "My grandfather" and uses the Present Perfect tense ("have arranged"), both of which are incorrect.
• Option 4: "My grand father had arranged all the books on the shelves." - While this uses the correct Past Perfect tense ("had arranged"), it omits the adverb "neatly", making it incomplete compared to the original passive sentence's meaning.

Conclusion

Option 2 is the correct active voice form because it accurately reflects the tense (Past Perfect), includes all necessary components (subject, verb, object, adverb), and follows the rules of voice transformation.