Four hours!? I really hope the students are allowed to leave once finished otherwise that is some intense psychological torture. It really doesn't seem like much cf to the A level in the UK which has a few similar sized sections to translate but also grammar and "composition" sections in, iirc, three hours. Odd, given the high standard of Latinity I've seen from Italian grad students I'm actually kind of surprised at this.
Will not answer questions which only need a basic knowledge of grammar. Pay attention to the textbook.