Active & Passive Voice Questions
Chapter: Sentence Transformation | Total Available: 36 Real Questions
1. Correct Answer
Option B is correct. This passive transformation is natural and appropriately omits the indefinite agent 'one'.
📖 Core Concept
When the subject of an active sentence is an indefinite pronoun like 'one', 'someone', 'people', or 'they' (referring to people in general), the 'by + agent' phrase is typically omitted in the passive voice. This is because the agent is either unknown, unimportant, or self-evident, and including it would sound redundant or awkward.
💡 3. Explanation
❌ 4. Option Analysis
- •Option A: "One's elders should be respected by one." Including 'by one' is grammatically correct but highly redundant and unnatural. In English, 'one' as an indefinite pronoun is almost always dropped in the passive voice.
- •Option C: "Respect should be shown to elders by one." This changes the main verb from 'respect' to 'show respect to', and while grammatically plausible, it is not a direct transformation of the original active sentence. It rephrases the meaning rather than passivizing the verb 'respect'.
- •Option D: "It is important that elders are respected." This is a grammatically correct sentence but it is a rephrasing using an impersonal construction, not a direct passive transformation of the given active sentence. It loses the modal 'should' and its specific nuance.
NDA Speed-Run / Mnemonic Shortcut
When the agent is 'one', 'someone', 'people', or 'they' (general), omit the 'by + agent' phrase in the passive voice for conciseness and naturalness. Focus on the object becoming the subject and the verb's passive form.
1. Correct Answer
Option A is correct. The verb 'resemble' is a stative verb that typically does not take a passive form, as it describes a state rather than an action performed on an object.
📖 Core Concept
Only transitive verbs (verbs that take a direct object) can be transformed into the passive voice. Stative verbs, which describe states, conditions, or relationships rather than actions (e.g., 'resemble', 'have', 'lack', 'fit', 'cost'), generally do not have passive forms because their 'objects' are not truly acted upon.
💡 3. Explanation
❌ 4. Option Analysis
- •Option B: 'The championship was won by the team.' (Grammatically correct passive)
- •Option C: 'A compelling novel was written by her.' (Grammatically correct passive)
- •Option D: 'The crops were damaged by the heavy rain.' (Grammatically correct passive)
NDA Speed-Run / Mnemonic Shortcut
Remember that only verbs which express an action performed *on* a direct object (transitive verbs) can be passivized. Stative verbs (e.g., resemble, have, lack, fit, contain, cost) generally do not have a sensible passive form. If attempting to form a passive voice sounds unnatural or ungrammatical, check if the verb is stative.
1. Correct Answer
Option C is correct. In this sentence, the passive voice is used effectively by omitting the agent ('by whom') because it is either unknown, unimportant, or generally understood (e.g., 'by the authorities' or 'by road crews'), thereby highlighting the state of the road.
📖 Core Concept
The passive voice is particularly effective when the focus is on the action and its recipient, and the agent performing the action is either irrelevant, unknown, or generally understood by the context. In such cases, the 'by + agent' phrase is typically omitted.
💡 3. Explanation
❌ 4. Option Analysis
- •Option A: 'The historic document was signed by all representatives yesterday.' Here, 'all representatives' is a specific and important agent.
- •Option B: 'The novel was adapted into a screenplay by a renowned writer.' The identity of the 'renowned writer' is significant here.
- •Option D: 'The painting was donated to the museum by a generous patron.' The 'generous patron' is an important piece of information that gives credit for the donation.
NDA Speed-Run / Mnemonic Shortcut
Look for passive sentences where the 'by + agent' phrase is absent. If the sentence still makes complete sense and the agent is either impossible to know, irrelevant, or commonly understood (e.g., general public, authorities), then it's an effective use of the passive voice to emphasize the event or object.
1. Correct Answer
Option B is correct. This conversion maintains the phrasal verb 'run into' intact and correctly applies the passive voice structure, although it's important to note 'run into' is often used intransitively, but here it's used transitively meaning 'to meet by chance'.
📖 Core Concept
When a phrasal verb (verb + preposition/adverb) is used transitively in active voice, the entire phrasal verb unit must be kept together in the passive transformation. The direct object becomes the subject, followed by 'to be' + past participle of the verb, and then the original preposition/adverb of the phrasal verb, before 'by + agent'.
💡 3. Explanation
❌ 4. Option Analysis
- •Option A: 'They looked up the information. Passive: The information was looked up by them.' This is actually correct. My apologies for the misclassification in the initial analysis. This is a correct transformation.
- •Option C: 'We called off the meeting. Passive: The meeting was called off by us.' This is also a correct transformation, maintaining the phrasal verb 'called off'.
- •Option D: 'He turned down the offer. Passive: The offer was turned down by him.' This is also a correct transformation, keeping 'turned down' together.
Upon re-evaluation, all options A, B, C, and D correctly demonstrate the transformation of a phrasal verb into the passive voice. The question intended to identify one correct example. Since the question asks 'Which of the following transformations demonstrates a correct...', and all given options are indeed correct examples of passive voice transformation of phrasal verbs, this question might be considered flawed if only one correct option was intended. However, in an MCQ format where usually one is *most* correct or uniquely exemplifies a point, the intention might have been subtle. Let's assume for the sake of the exercise that only one 'best' or 'most representative' example is sought, or that there might be a subtle nuance. Given the options are all structurally sound, I will pick B as an example, but acknowledge the validity of A, C, and D as well.
NDA Speed-Run / Mnemonic Shortcut
When transforming phrasal verbs to passive voice, always treat the verb and its particle (preposition/adverb) as a single unit. The particle should *not* be separated from the verb's past participle form. The structure is: New Subject + (form of 'to be') + Past Participle + Particle + (by Agent).
1. Correct Answer
Option D is correct. 'The new policy is being hoped will be implemented soon' contains an ungrammatical double passive construction ('is being hoped will be implemented').
📖 Core Concept
A 'double passive' or 'pseudo-passive' occurs when a sentence incorrectly attempts to apply passive voice to a structure that is already passive or cannot grammatically support a direct passive transformation, often with verbs of knowing, believing, hoping, etc., leading to awkward and incorrect phrasing.
💡 3. Explanation
❌ 4. Option Analysis
- •Option A: 'It was decided that the meeting would be postponed.' This is a standard and correct impersonal passive construction.
- •Option B: 'The proposal was agreed upon by the committee.' This is a correct passive transformation of a phrasal verb 'agree upon'.
- •Option C: 'He is said to have been seen fleeing the scene.' This is a correct and common passive construction, specifically a complex passive with an infinitive, not a double passive.
NDA Speed-Run / Mnemonic Shortcut
Watch out for verbs of mental state or opinion (hope, believe, think, say) combined with 'is being + past participle' followed by a 'that'-clause or infinitive. These often create an incorrect or awkward double passive. Correct impersonal passive structures usually begin with 'It is + past participle + that-clause' or a subject + 'is/are + said/believed/known to + infinitive'.
1. Correct Answer
Option D is correct. This option correctly transforms the active voice sentence with a perfect modal ('might have completed') into the passive voice ('might have been completed').
📖 Core Concept
When transforming sentences with modal verbs (can, could, may, might, must, should, will, would) into the passive voice, the structure is: Object (as new subject) + Modal Verb + be + Past Participle of the main verb (+ by Agent, if necessary). For perfect modals (modal + have + past participle), the structure is: Object + Modal Verb + have been + Past Participle.
💡 3. Explanation
❌ 4. Option Analysis
- •Option A: Active: 'You must finish this work by evening.' Passive: 'This work must be finished by evening by you.' While grammatically correct, the placement of 'by you' after 'by evening' is somewhat awkward. A more natural phrasing would be 'This work must be finished by you by evening' or simply omitting 'by you' if the agent is not crucial. However, the core passive structure is correct.
- •Option B: Active: 'They should respect their elders.' Passive: 'Their elders should be respected by them.' This is grammatically correct.
- •Option C: Active: 'We can achieve our goals.' Passive: 'Our goals can be achieved by us.' This is grammatically correct.
All options A, B, C, and D are actually grammatically correct transformations of modal verbs to passive voice. The question asks 'Which of the following transformations demonstrates a correct shift'. Since all are correct, this question is flawed if only one correct option is expected. However, option D involves a perfect modal, which is a slightly more complex form than the simple modal structures in A, B, and C, making it a good test of advanced understanding.
NDA Speed-Run / Mnemonic Shortcut
For modal verbs: Active: Subject + Modal + Base Verb + Object. Passive: Object + Modal + be + Past Participle + (by Subject). For perfect modals: Active: Subject + Modal + have + Past Participle + Object. Passive: Object + Modal + have been + Past Participle + (by Subject).
1. Correct Answer
Option B is correct. 'The window got broken during the storm' is an example of a 'get-passive,' which emphasizes the occurrence of an event or a change in state, often with a sense of action or dynamism.
📖 Core Concept
The 'get-passive' uses 'get' + past participle, instead of 'be' + past participle. It is typically used to express actions that happen to the subject, often implying an adverse or unexpected event, or a dynamic change in state. It is more common in informal language than the 'be-passive'.
💡 3. Explanation
❌ 4. Option Analysis
- •Option A: 'The children were taught by an experienced teacher.' This is a standard 'be-passive'.
- •Option C: 'The report was submitted late by the team.' This is a standard 'be-passive'.
- •Option D: 'The new rules are followed by everyone.' This is a standard 'be-passive'.
NDA Speed-Run / Mnemonic Shortcut
To identify a 'get-passive', look for the auxiliary verb 'get' (or its forms like 'got', 'gets') immediately followed by a past participle. This construction often implies that something happened to the subject, rather than merely stating a passive condition, and can add a sense of informal or dynamic occurrence.
1. Correct Answer
Option D is correct. The verb 'sleep' is an intransitive verb and cannot be directly passivized, making the sentence grammatically incorrect.
📖 Core Concept
Only transitive verbs (verbs that take a direct object) can be transformed into the passive voice. Intransitive verbs, which do not take a direct object (e.g., sleep, walk, run, happen, exist), cannot be made passive because there is no object to become the new subject of the passive sentence.
💡 3. Explanation
❌ 4. Option Analysis
- •Option A: 'The decision was arrived at after much deliberation.' This is a correct passive construction of the phrasal verb 'arrive at' (meaning 'reach'). Active: 'They arrived at the decision.'
- •Option B: 'He was listened to intently by the audience.' This is a correct passive construction of the phrasal verb 'listen to'. Active: 'The audience listened to him intently.'
- •Option C: 'A new policy was agreed upon by the board members.' This is a correct passive construction of the phrasal verb 'agree upon'. Active: 'The board members agreed upon a new policy.'
NDA Speed-Run / Mnemonic Shortcut
To quickly spot an incorrect passive, mentally try to convert it back to active voice. If the active form requires an object that isn't naturally present for the verb (i.e., it's an intransitive verb), then the passive form is incorrect. Common intransitive verbs include sleep, walk, run, happen, exist, seem, appear, die, etc.
1. Correct Answer
Option A is correct. This option correctly uses the impersonal passive construction.
📖 Core Concept
When the subject of the active sentence is 'people', 'they', 'one', or 'someone' and the main verb is a reporting verb (e.g., say, believe, know, think), an impersonal passive construction starting with 'It is said/believed/known that...' is often preferred for naturalness and clarity.
💡 3. Explanation
❌ 4. Option Analysis
- •Option B: "Time is said to heal all wounds by them." While grammatically possible, this construction is less natural and more awkward than the impersonal 'It is said...' form, especially with the unnecessary 'by them'.
- •Option C: "All wounds are said to be healed by time." This significantly alters the focus and structure. The original sentence reports a general saying; this option makes 'all wounds' the subject of the main passive verb, which is a different transformation for a different type of sentence structure. It's not a direct transformation of the given active sentence's main clause.
- •Option D: "That time heals all wounds is said." This is grammatically awkward and unnatural. The 'that'-clause as the subject of a passive verb is usually avoided in favor of the 'It is said that...' construction.
NDA Speed-Run / Mnemonic Shortcut
For sentences with indefinite subjects like 'they' or 'people' followed by a reporting verb and a 'that'-clause, always look for the 'It is said/believed/known that...' construction. This is the standard and most idiomatic passive transformation.
1. Correct Answer
Option C is correct. This transformation accurately handles the verb 'hear' followed by an object and an -ing form.
📖 Core Concept
When active sentences use verbs of perception (see, hear, feel, watch, etc.) followed by an object and either an infinitive (without 'to') or a present participle (-ing form), the passive transformation often retains the participle. If an infinitive was used in the active voice, 'to' is usually added in the passive voice (e.g., 'I saw him go' becomes 'He was seen to go'). If a participle (-ing form) is used, it is generally retained ('I heard him singing' becomes 'He was heard singing').
💡 3. Explanation
❌ 4. Option Analysis
- •Option A: "He is often heard to sing melodious songs by us." This uses the 'to + infinitive' form. While this is used for some verbs of perception when the active voice uses a bare infinitive, in this context 'singing' (the -ing form) is more commonly maintained in the passive voice to convey the continuous or ongoing nature of the action that was perceived.
- •Option B: "Melodious songs are often heard sung by him." This changes the focus entirely. The original sentence is about hearing *him* performing an action, not about hearing *songs*.
- •Option D: "Singing melodious songs is often heard from him." This is grammatically incorrect and highly unnatural. The gerund phrase is treated as the subject of the passive verb, which doesn't reflect the original active sentence's structure.
NDA Speed-Run / Mnemonic Shortcut
For 'verb of perception + object + -ing form' constructions, the passive usually becomes 'object + be + past participle of verb of perception + -ing form'. Focus on maintaining the perceived action's continuous nature.
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