the calculus exam i took the calculus exam this morning,but it wasnt so difficult as i once thought,maybe it is because i reviewed it well.although i know i wont fail on it ,i still feel a bit sad.now that i can learn the calculus well,why i didnt pay enough attention to it at the beginning of this term.and if i had i wouldnt feel afraid of the exam.i suddenly feel that i am always wasting my time,and i even dont know what i have really learnt since i entered the college.i seem to have forgotton my ambitions ,my dream.......i feel sad now,and if i dont change my attitude to my study i will feel regretful in the future too.so i must strong my will ,toward my goal ,step by step from now on.