i took an exam today. i did poor in it.there was a reason for that. i did not prepare well with it.a week before the exam,my friends linda asked me to attend a dancing course with she. i was interested in dncing,but i agreed.however, learn dancing is not easy at all.every night after returning back from the dancing class,i was so tired that i didi not want to do something.as a result,i did not go over my notes,i regretted go to the dancingclasses.after all, studying is more important.having a hobby is important,but we should not letit influence our studirs in bad way