What is the passive form of who killed the tiger ?
ABy whom the tiger is killed?
BBy whom the tiger was killed?
CBy whom the tiger are killed?
DBy whom the tiger were killed?
ABy whom the tiger is killed?
BBy whom the tiger was killed?
CBy whom the tiger are killed?
DBy whom the tiger were killed?
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The Passive form of "Will the police arrest the union leader ?"
The Passive voice of " Whom has he praised ?"