Question:
The Passive form of '"Who did this ?"
A"By whom is this done ?"
B"By whom was this done ?"
C"By whom is this being done ?"
D"By whom has this done ?"
Answer:
B. "By whom was this done ?"
Explanation:
Who ൽ തുടങ്ങുന്ന Questionനെ Passive Voice ൽ ആക്കുന്ന വിധം : Who ന് ശേഷം V2/did വന്നാൽ : Passive form : By whom + was/were + object + V3 . By whom + was + this + done .
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