Which of the following options is the most suitable conversion of the following sentence into active voice?
A new set of safety regulations has been introduced by the aviation authority across all domestic airports.
Show answer & explanation
Correct answer: C
Explanation
Correct Answer
The aviation authority has introduced a new set of safety regulations across all domestic airports.
Explanation
The given sentence is in the passive voice and uses the present perfect tense ("has been introduced"). To convert it into the active voice, the agent "the aviation authority" becomes the subject. The present perfect passive construction "has been + past participle" must change into the active present perfect construction "has/have + past participle". Since "the aviation authority" is singular, it takes "has introduced".
The other options are incorrect because they change the original tense of the sentence. Option 1 uses the simple present tense ("introduces"). Option 2 uses the simple past tense ("introduced"). Option 4 uses the future tense ("will introduce").
Key Points
When converting voices, the original tense must never change. Spotting "has been introduced" immediately tells you that the active sentence must feature the present perfect tense form "has introduced."