With more students returning to classrooms this month under a new state law requiring that option, some Eastern Iowa school leaders say they are concerned about maintaining social distancing in class — raising fears of increased exposure to COVID-19.In the Iowa City Community School District, students have had the choice of either hybrid learning — attending in-person in either A or B days and attending online on the opposite days — or online learning.But with less room for social distancing as more students return, Iowa City schools Superintendent Matt Degner is among those concerned the district will see an influx in the number of both students and staff having to quarantine.On Friday, Gov.