Henry: Hello, Mary! How was your exam yesterday? 
Mary: Not too good. It wasn't as easy as the last one, and it was longer than before. 
Henry:Well, the final exam is always more difficult. You have to work harder. You will certainly do better next time.
Mary: I worked very hard, but I was too careless. I made some stupid mistakes. I should be more careful next time. 
Henry: Maybe you took too many courses this year.
Mary:No, I took as many courses as last year.
Henry: Well, it\'s no use worrying about the exam now. Let's talk about the football game tonight. It's much more interesting.