Change Active voice into Passive voice (Past perfect tense).

Question

Accepted Answer

Active Voice	Passive Voice
I had lost three pencils	Three pencils had been lost by me
You had broken my mirror	My mirror had been broken by you
Had they not written any fiction?	Had any fiction not been written by them?
His father had not beaten him	He had not been beaten by his father
He had already made tea	Tea had already been made by him
They had finished the work	The work had been finished by them
She had changed her clothes	Her clothes had been changed by her
The farmer had not yet sown the seeds	The seeds had not yet been sown by the farmer
She had prepared everything	Everything had been prepared by her
I had seen him twice	He had been seen by me twice
Qasim had delivered a speech	A speech had been delivered by Qasim
We had caught the train	The train had been caught by us
Had the doctor tested my eyes?	Had my eyes been tested by the doctor?
Who had seen the lion?	By whom had the lion been seen?