Change the following sentence into the Active form.
It was widely considered that the ancient ruins were believed to have been constructed by a previously unknown civilization.
Show answer & explanation
Correct answer: C
Explanation
Passive to Active Voice Transformation
To change the sentence "It was widely considered that the ancient ruins were believed to have been constructed by a previously unknown civilization" into the active voice, we must identify the agents performing the actions and restructure the sentence.
Step 1: Identify the main verb and agent
The main passive verb phrase is "was considered". The implied agent doing the considering is "People". Thus, the sentence starts with "People widely considered...".
Step 2: Transform the subordinate clause
The passive clause "the ancient ruins were believed to have been constructed by a previously unknown civilization" needs to be converted.
The "believed" part is often dropped or simplified when switching the whole structure to active.
"were believed to have been constructed" refers to a past action ("had constructed") being reported in the past.
Therefore, the active clause becomes "...that a previously unknown civilization had constructed the ancient ruins."
Step 3: Combine and verify
Combining the parts from Step 1 and Step 2 gives us: "People widely considered that a previously unknown civilization had constructed the ancient ruins."
Option ‘C’ is the correct answer.