Today , the North Allegheny School District is home to two elementary schools , three secondary schools and seven high schools .
Today , the North Allegheny School District is home to two elementary schools , three middle and seven high schools .
Today , the North Allegheny School District is home to two elementary schools , three middle and seven high schools .
为这句话写一个解释: Today , the North Allegheny School District is home to two elementary schools , three secondary schools and seven high schools . 输出: