How would you punctuate quotes for multiple people talking simultaneously in the same paragraph? I.e.,
They lined up and waited for the last bell of the day and cheered with their tiny voices, "It was nice to meet you, Ms. Homer", "I hope you come again", "You are a nice teacher".
Also, when using a quote mid-speech do you use a period at the end of that speech or a comma; none at all? I.e.,
As I walked away, I could hear several echoes of ‘Bye, Ms. Homer.’ until their voices faded in the distance, no longer heard.