The passive form of "Who killed the bird?"
Solution
Correct Answer: Option C
Active voice এ Who থাকলে passive voice এ Formal writing এ By whom ব্যবহৃত হয় এবং informal English এ Who ----- by? ব্যবহৃত হয়।
Informal English সাধারণত Spoken English এবং informal writing এ ব্যবহৃত হয়।
Active: Who has written the book?
Passive: By whom has the book been written? (Formal)
Or, Who has the book been written by? (informal)
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