Choose the correct passive voice transformation of the sentence:
The dedicated researchers have already published the groundbreaking findings in a prestigious scientific journal.
Show answer & explanation
Correct answer: B
Explanation
The original sentence, 'The dedicated researchers have already published the groundbreaking findings in a prestigious scientific journal,' is in the present perfect active voice. To transform it into the passive voice, the object ('the groundbreaking findings') becomes the subject, and the subject ('the dedicated researchers') becomes part of a 'by' phrase (or is omitted). The verb tense must remain the same (present perfect), but change to the passive form, which is 'have/has been + past participle' ('have already been published'). Option B correctly applies these rules.