【答案解析】[范文]
Dear president,
   I hope you would take time to read this email. Recently my classmates have been complaining and it seems to be confirmed that the school buses have been canceled. I am here to demonstrate my protest against this decision.
   The school bus is helpful for us students to go to school. If there is no school bus, many of US have to change buses many times before we reach school. It costs too much, both time and money. Still, school bus is much safer for us students than most public transport. Finally I assume that the tuition fees we have paid must be sufficient to support the running of the school buses.
   I hope you can consider my advice and I really appreciate your time.