Regular vers formed by adding -ed at the end are?

Mr and mrs van daan murmur their welcome what are the playwrights indicating by using the word murmur?

This passage from chapter 4 of story of my life is an example of which story of plot

From the glass menagerie: "suspended in the mist over berchtesgaden, caught in the folds of chamberlain's umbrella." who was chamberlain? a.paul chamberlain: tom's father b.neville chamberlain: prime minister of great britain. c.pedro chamberlain: amanda's drunkard husband d.cornelius chamberlain: gentleman caller for laura