Convert the sentence provided below from its passive voice structure to an active voice structure:
The state secrets had been smuggled out by a double agent before intelligence could act.
Show answer & explanation
Correct answer: D
Explanation
Correct Answer
A double agent had smuggled out the state secrets before intelligence could act.
Explanation
Rule: Converting a sentence from passive to active voice requires keeping the original tense perfectly intact. The main clause of the passive sentence is written in the Past Perfect tense (had been smuggled).
Application: The active agent performing the core action is "A double agent". Converting the past perfect structure yields "had smuggled", keeping the exact timeline of the original statement.