Which line contains oxymoron

Is this inappropriate language,”good evening,everyone. for coming out to sit on hard,uncomfortable stadium concrete on an unseasonably warm evening and wearing clothes and shoes you can’t wait to get home to get get ou of.” if so,how can i write it in formal?

The process of? involves students offering each other constructive feedback to improve their written drafts.

When the dutch protestants rebelled against the roman catholic church, the spanish king quelled the uprising.truefalse