Use of subordinate clauses is more of a grammatical thing, and if the writer is not sure if a sentence is correct he/she may ask a peer reviewer to edit or comment on it. However, the body of the essay is a standard for every essay assigned and it should be much easier for the writer to tell if he/she is following the rules.
It would be passive because if you evaluate the author and determine what the knowledge of the top are it would be passive i also know because we just did this like two weeks ago.
