Change assertive sentence into interrogative sentence. Everybody knows that man is mortal.
AWho does not know that man is mortal ?
BWho not know that man is mortal ?
CWhom know that man is mortal ?
DNone of these .
AWho does not know that man is mortal ?
BWho not know that man is mortal ?
CWhom know that man is mortal ?
DNone of these .
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