   neutral   Sometimes I forget that we don't have school on Saturdays.     neutral   Americans also don't go to work on Saturdays.  
    neutral   So there are only five working days in a week?     neutral   Right. What are you going to do tonight?  
    neutral   I'm going to study.     neutral   
 You should join my class this Saturday evening. We're all studying for our final exams next
 How come?    surprise  You haven ’ t heard about the party at Mike's