In the questions below the sentences have been given in Active/Passive voice. From the given alternatives, choose the one which best expresses the given sentence in Passive/Active voice.
They greet me cheerfully every morning.
Answer: B
Correct answer: I am greeted cheerfully by them every morning.
The present simple greet becomes am greeted - a habit, so not the continuous. Was greeted shifts to the past, and am being greeted turns a daily habit into something happening now.
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Darjeeling grows tea.
Answer: C
Correct answer: Tea is grown in Darjeeling.
Grows is present simple, so the passive is is grown. The agent Darjeeling is a place, so it appears with in rather than by. Tea grows in Darjeeling is active again, and let the tea be grown turns a statement into a command.
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They have built a perfect dam across the river.
Answer: B
Correct answer: A perfect dam has been built by them across the river.
The present perfect have built becomes has been built, agreeing with the new singular subject a perfect dam. The past-tense and modal options change when the building happened or whether it happened at all.
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Do you imitate others?
Answer: B
Correct answer: Are others imitated by you?
The present simple question do you imitate becomes are others imitated. The auxiliary do disappears into the passive are, and the question order is kept because the sentence is still a question.
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You need to clean your shoes properly.
Answer: C
Correct answer: Your shoes need to be cleaned properly.
Need here is followed by a passive infinitive: what needs doing is the cleaning, and the shoes are what gets cleaned. The options making you or your shoes the thing needed reverse which part of the sentence is passive.
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He is said to be very rich.
Answer: B
Correct answer: People say he is very rich.
Turning a passive into the active requires an agent, and where none is given English supplies an indefinite one - people. He is said to be then unpacks into the clause he is very rich. The options with it lose the person the sentence is about.
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The invigilator was reading out the instructions.
Answer: B
Correct answer: The instructions were being read out by the invigilator.
The past continuous was reading becomes were being read. The plain past and past perfect options change the aspect: the sentence describes an action in progress, not one completed.
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You can play with these kittens quite safely.
Answer: D
Correct answer: These kittens can be played with quite safely.
Play with is a prepositional verb, so the preposition stays attached to the participle and is left stranded at the end: can be played with. Adding you after it, as one option does, gives the preposition an object it must not have.
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A child could not have done this mischief.
Answer: C
Correct answer: This mischief could not have been done by a child.
The modal perfect could not have done becomes could not have been done - the perfect have is kept and been inserted before the participle. Dropping either leaves the tense wrong.
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James Watt discovered the energy of steam.
Answer: B
Correct answer: The energy of steam was discovered by James Watt.
The object becomes the subject and the subject becomes the agent after by. The option reversing them makes the energy of steam the discoverer, and the first option has no passive verb at all.
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