You are asking us to do your homework, and that ain't gonna fly. However, you may simply need some help in identifying the difference between active and passive voice. It is generally considered that the active voice is punchier, more interesting, more natural ... in short, better. That's not always the case, and sometimes the passive voice is softer, more polite, less accusatory and entirely appropriate. But generally, strive for the active.
How to tell the difference? Find out WHO or what is doing the thing in question. That's your active subject. Then say what he/she/it did.
Look at the first example:
"The letter has been received and carefully read by the editor."
Who is doing something here? The letter? Not really. It is just "passively" being pushed through the system. It was received and read - it did nothing.
It's the EDITOR who is doing things. He received the letter. He read the letter. HE is the active party. So ... re-write it into the Active Voice:
"The editor received the letter and read it carefully."
Some of the examples are already in active. Number 4, "Kim has never seen a basketball game." Kim is the only one who is doing or not doing anything - the basketball game simply exists. Even if Kim has never seen one, Kim is the active subject here. We could re-write the sentence into an awkwardly bad passive as follows:
"A basetball game has never been seen by Kim." Gasp!
Some are active, but debatable whether it is the best construction. Number 5:
"The voters elected Roosevelt President of the United States in 1904."
The voters are indeed the ones doing the action; they are electing the incumbent President Roosevelt to a full term in 1904. But, depending on the sense you are trying to give, you may wish to say instead, "President Roosevelt was elected president in 1904."
(He was already President, but he assumed that role at the assassination of President McKinley in 1901; he wasn't elected to the office until 1904.)
But this conversation is now into politics, and one should never discuss politics, religion, or anything else in public.
Student or Learner