Change into passive voice: The scientists had discovered a new species.
AA new species has been discovered by the scientists.
BA new species is discovered by the scientists.
CA new species had been discovered by the scientists.
DA new species was discovered by the scientists.
Explanation
– Past perfect tense uses ‘had been + past participle’ in the passive.
– The object ‘a new species’ becomes the subject of the passive sentence.
– Correct: A new species had been discovered by the scientists.
Exam Relevance
- Topic: Voice
- Subtopic: Active and Passive Voice
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