Who has stolen my book..?
Change this sentence from active to passive voice.

Appeared in: AIIMS CRE SNO - 2023

Explanation

The correct structure for converting an active interrogative sentence starting with 'Who' to passive voice is 'By whom + auxiliary verb + subject + been + past participle'.
In the given sentence, 'Who' changes to 'By whom'.
The object 'my book' becomes the new subject, which is singular, so the auxiliary verb 'has' is used.
The verb 'stolen' is the past participle of 'steal'.
Following the rule, the correct sentence is 'By whom has my book been stolen?'.

Option B: The word order is incorrect. In a passive interrogative sentence, the subject ('my book') should be placed between the auxiliary verb ('has') and 'been'.
Option C: This is a sentence fragment, not a complete question. It lacks the proper auxiliary verb structure required for an interrogative sentence.
Option D: This option has two errors: 1) Incorrect subject-verb agreement, using 'have' for the singular subject 'my book'. 2) Incorrect word order, as 'been' is placed before the subject.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Conversion of active voice to passive voice for interrogative sentences as background academic context rather than a clinical decision trigger.
This is a general English question, not related to clinical practice. However, clear and grammatically correct communication is essential in all professional settings, including nursing, to ensure accurate documentation and patient care.
What if? - If the stem changed one defining clue so that By whom has my book been stolen? no longer matched, reassess the option whose mechanism, classification, or indication now fits the revised presentation.

How to Approach the Question

First, identify the tense and structure of the original sentence. The sentence 'Who has stolen my book?' is an interrogative sentence in the present perfect tense.
Identify the subject ('Who'), verb ('has stolen'), and object ('my book').
Recall the rule for converting an active interrogative sentence starting with 'Who' to passive voice: 'Who' becomes 'By whom'.
The object of the active sentence becomes the subject of the passive sentence. Here, 'my book' is the new subject.
The auxiliary verb must agree with the new subject. Since 'my book' is singular, use 'has'.
The passive voice structure for the present perfect tense is 'has/have + been + past participle (V3)'.

Concept Tested & Keywords

Concept Tested: Conversion of active voice to passive voice for interrogative sentences.
Stem keywords: active voice, passive voice, Who has stolen my book
Lead-in keywords: Change this sentence

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Practise the full AIIMS CRE SNO - 2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.