请大虾帮我翻译下，谢谢很急的 可以加分的

Sorry，sir. There is a mistake between you and one of my classmates. In the first class of oral English, his illness accouted for his absence. However, you gave us the assignment of landing on a english name for ourselves . As the commissary in charge of studies, i gave him a name at random to fill in the form for you. But i forgot to tell him to check in when he came back. To my surprise, there is no mark which can see that his absence in the form_ In fact, the student uses another name to attend your class. so, i hope you can forgive me for the carelessness and give the sthdent a fair mark. thank you.

i am the representative of study in the class. a foreign teacher who taught us oral english, once asked us to give each of us a english name by ourself, one of my classmates gave himself a name arbitrarily because he first time was absent. we used these names of each one giving themself to make a card. each body's name was recorded on this card, and it was used to record that who is absent at class time by then. but later when we found his name was not the same between he gave himself and the latter he registered on the card. As a consequence, he had been recorded as absent always.