Select the option that expresses the given sentence in active voice.
By whom were these letters written?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Who wrote these letters?
Type of sentence: Interrogative
Tense: Past simple
Given voice: Passive
Subject: (Unknown → asking “Who”)
Object: These letters
Structure for conversion:
Active: Who + verb (past) + object
Passive: By whom + was/were + object + past participle (V3)
Converted sentence: Who wrote these letters?
Hence, the chosen option is correct.