Select the option that expresses the given sentence in active voice. The batteries in the smoke detector have been changed.
Someone has changed the batteries in the smoke detector.
Identify the tense. ‘Have been changed’ is the present perfect passive. Its active counterpart is the present perfect active: has/have + past participle.
Supplying the agent. The passive sentence names no doer, so the active version needs an indefinite subject — someone. Being singular, it takes has, giving ‘Someone has changed the batteries in the smoke detector.’
Why the others fail — all three keep the right voice but the wrong tense:
‘Someone had changed…’ — past perfect, which places the action before some other past event and so alters the time frame.
‘Someone has been changing…’ — present perfect continuous, which suggests an action still in progress rather than one completed.
‘Someone changed…’ — simple past, which reports a finished event without the present relevance the perfect carries. This is the closest wrong answer: the batteries were changed in both readings, but only the perfect says that they are now changed.
Takeaway: voice change must preserve tense exactly. Name the tense of the given sentence before looking at the options.
Similar Questions
Direction: Rewrite the sentence in Passive voice.
The farmer produces wheat.
Rewrite the sentence in Passive voice .
The Police searched his house.
In the question a sentence has been given in active/passive voice. Out of the given four alternatives, suggest the one which best expresses the given sentence in passive/active voice.
Somewhat similar to the local gilli-danda, the game of cricket was introduced in India by the Englishmen.
In the question, a sentence has been given in active/passive voice. Out of the given four alternatives, suggest the one which best expresses the given sentence in passive/active voice.
Originality of thought was not appreciated in school essays.
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The Linguistic Survey of India provides an overview of the extent of dying languages in India.
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The language, cuisine, attire and music of the British added a new flavour to life in India.
A sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice.
Navin M Raheja has made several contributions in the field of conversation
Select the correct PASSIVE VOICE form of the given sentence
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A sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active Voice.
Nupur was cautioned by her mother against making a hasty decision about changing jobs.
Directions: Select the correct passive form of the given sentence.
She can do only one thing at a time.
Important Questions from Active and Passive Voice
Directions: Select the correct passive form of the given sentence.
The coach received the members of the team with great excitement.
Select the correct passive form of the given sentence.
They are laying new telephone cables in our colony.
Select the correct passive form of the given sentence.
Dr. Verma advised patients to try out a new medicine for migraine.
Choose the correct passive construction of the sentence:
Rosy paints beautiful landscapes.
Direction: Select the correct transformation from active to passive voice :
They made him prince.
