Answer:
1. The children were doing their homework when their father came back from the office.
2. He was playing the guitar when someone opened the window and threw out a bucket of water.
Part of narrative.
literary device.
and sound patern
Answer:
a mark or character used as a conventional representation of an object, function, or process, e.g. the letter or letters standing for a chemical element or a character in musical notation.
or...
a thing that represents or stands for something else, especially a material object representing something abstract.
hope it helps;)
Answer:
It makes readers focus on the conclusion and the author's message.