@mtmind: I don’t think it is at all dispositive that OP knew this was “wrong”. Perhaps after the admonition from the teacher DURING the exam. My question is whether there was anything BEFORE the exam that suggested that bringing a book with someone else’s annotations was wrong. Literally, this means the school ONLY allows new books…that’s a bit absurd, TBH.
However, we need OP to pipe in to be sure.