Ch. 28 Will Not Be Covered On This Test!

So I really don't like annoying people who don't pay attention, especially the ones in my biology class. There are three woman in their mid 30s in my biology class. They all sit together away from the rest of the class like their better than us. This I don't so much mind because I can now refer to them as the annoying section. They're always telling the rest of us what to do and when we can talk. Sometimes if some of us get to class early we sit around cracking jokes and goofing off. I don't know what these ladies problems are, but they always give us these looks and tell us to act more mature. So it's not OK for us to talk and goof off before class but it's OK for them to do it during class. They're always talking back and forth to each other during the lecture, then they waste class time asking questions he's already answered. Today at the beginning of class our teacher told us that the test would cover Ch. 21, 22, 26 & 27. He then repeated and wrote it on the board before we started asking questions after the lecture. Before we left one of them raises her hand and says "What chapters will this test cover?" After he repeats it again. She asks, "Not 28?" I just wanted to slap the woman and say "Did he say 28?! No!" Grrrrrrrr.