person A: I'm feeling good about my math test.
person B: That's always a good feeling.  If you don't feel confident going in_comma_ you're in trouble!
person A: Exactly_comma_ it's a lot of calculus but I think I did well.
person B: Ahhh_comma_ Calculus_comma_ I had a pretty hard time with that as well_comma_ some how I got a B and to be honest_comma_ I don't even know it.
person A: It is difficult especially because I hadn't done much math before this year.