Question

he has spoken to the headmaster in passive voice
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Answer 1

He has been spoken by the headmaster.

• This voice describes interest in the element that experiences a change, instead of the element that is performing the change.
• When the emphasis is on either the thing or the person affected by the action, it is used.  
• For example -  Active: Tim reads a novel.   Passive: A novel is read by Tim
• When the sentence is already in passive voice it is only required to say “he has been spoken.
• Thus, the correct sentence is - He has been spoken by the headmaster.