What is mount alvernia high school closing?

As an AI language model, my training data only goes up until June 2021. However, I can provide information that up until June 2021, there has been no news or reports about Mount Alvernia High School closing. It is a private, all-girls Catholic school located in Newton, Massachusetts that caters to students from grades 7 to 12. The school has been in operation since 1929 and has a reputation for providing an excellent education for young women.