I'm li hua,in the United States Baltimore messi high school,a student exchange for roommate Tom uncivilized performance you feel distressed,Tom uncivilized performance:language is not civilization,export into a dirty,big,urinate after flushing,the serious influence public health,came back late and refused to register,no respect for management personnel,not allowed to use the other items,by the property of other long time,and on the wall squiggle,intentionally damage public facilities.Tom to come to,I would like David reply as soon as possible