person A: I only got a B- on an assignment i worked really hard on recently_comma_ but i'm working even harder now studying to ace the exam! 
person B: Wow! I'm sorry to hear that. Do you think you will get an A this time?
person A:  I do actually! 
person B: Congratulations! Studying can be hard_comma_ but sometimes it's about technique rather than time spent. Are you doing anything different this time?