I know I don't exactly match the description but I got an A* in all units except one which was the one where the exam was on To Kill a Mockingbird, which I hadn't actually finished reading. So my advice would be, read the damn book. I knew the ending and like 90% of the book, so I assumed the rest would be trivial. You never know what might come up.
Poetry is hella easy though, just make the most far-fetched points possible that have the loosest possible connection, I think I had a Ted Hughes poem, "Hawk Roosting" and I made a reference to Kazakhstan's flag, (which I literally just got from Borat).