First appendectomy because that’s the surgery they wanted to do and they decided to do
What 3000 are we referring too?
B, because it’s from that answer it tells you what the story is about summarized
The answer is tempered steel:)
Hm, are you sure you got the question right? Because all of the sentences are written in active voice! Active voice is essentially everything that is not in the passive voice, and I don't see any passive voice here.
Passive voice would be formed with subject+form of "to be" + past participle,
and we have no example of this. All of the sentences here are in active voice.