Weekday mornings are very busy for US middle school students. When your school doesn’t have a bus, and you live too far away to walk, you need a carpool (拼车). A carpool is a group of people sharing the responsibility (责任) of driving to school in the morning. There are usually four or five kids in a carpool and their parents take turns to drive the kids in their cars.Someone’s car smells like wet dogs. Some kids get to eat desserts (甜点) for breakfast and some parents shout so much that all you try to do is to stay quiet and go unnoticed. When your mom or dad drives the carpool,