***** NOT A TEACHER *****
Like you, I am eagerly waiting for the answers to your great questions. (By the way, if you posted shorter threads, maybe you would get faster replies.)
I cannot answer your great questions, but I can give you some information that I found that may interest you.
ACTIVE: They gave a prize to Mr. Black.
PASSIVE: Mr. Black was given a prize. (Mr. Black is given prominence [the attention].)
ACTIVE: They gave the first prize to Mr. Black.
PASSIVE: The first prize was given to Mr. Black. [Prominence on the first prize.]
ACTIVE: They offered the position to Mr. Green.
PASSIVE: The position was offered to Mr. Green.
PASSIVE: Mr. Green was offered the position.
Source: A.S. Hornby, A Guide to Patterns and Usage in English (1954), Oxford University Press.
Student or Learner