By Win Damon | Haverhill school bus. (WHAV News file photograph.) While a ransomware attack yesterday is keeping Haverhill public school students in grades 2, 3 and 4 from taking their seats today in classrooms, kindergarten and first graders returned to in-person attendance Monday. Haverhill School Superintendent Margaret Marotta tells WHAV listeners that responses were overall positive. “Inside schools, everything went really smooth. The kids were adorable. I was in quite a few schools and the kids were happy to be back. One little boy told me he was just a little bit scared to be back, but he was a lot excited—and I think that sums it up for everyone,” she says.