options: m : sorry . i must think of you as someone else . m : i guess that you are right . i did n't work hard enough early . m : sorry . i was mistaken . your grades are also great . congrats ! m : sorry that you did n't get a high grade .
article: m : congratulations ! you got the highest grade in the whole class . you must have been working hard for a long time . f : you must be thinking of someone else . i 'm still waiting for my grades .