These were short stories, including a story with a futuristic household, super clean, except nobody remaining alive and with scripted voices recorded on auto-reply, automatic stuff still trying to get done...
It was required reading; and things have physically occurred in my life, which prompt my desire to reread it! I understand that this is a long shot, but I hope that someone might recall it. We also read "Animal Farm", "1984", and "Rime of the Ancient Mariner", plus these collected stories in a single, thick book*.
[It was 1987. It was a collection not an anthology. I don't recall ANY of the stories, other than the wisp shared already. The Ray Bradbury title helps to start - thank you! – Margaret Kiser Aug 6 at 20:56 [Clearly, I did not understand this site's protocol. I appreciate the clarifying input. I hope that my copy/paste/delete from comments helps matters. [*I don't recall whether these were all in the same volume. As I said, I recall very little other than there was a thick book and this story was in it. Thanks for helping me to clarify. I'm satisfied to know the Ray Bradbury author and title, which I still need to copy and hope to do so next.]