Billings High School seniors share lessons learned during pandemic school year Senior High wins The War of the Walls Q2 News / Mitch Lagge Billings Senior High School cheerleaders wave people in for a car wash near the Materlube at 1628 Grand Ave. and last updated 2021-05-17 12:15:25-04 BILLINGS â While washing cars at an annual graduation party fund raiser in Billings Saturday, senior students from two Billings high schools said finishing high school during the COVID-19 pandemic was difficult and different, but yielded its own unique lessons. âAs a school and a community, weâve all really worked hard to try and make it the best it could be, especially these parents," said Savanna Cronk, a senior at Senior High School with plans to attend Montana State University in the fall.