The author's main purpose of writing a text is his main reason for writing. He could be writing to inform, entertain, describe, or educate people on a particular subject.
There are several reasons why an author could write a text. Unfortunately, you did not include the text here so that the reason can be identified.
To help you answer this question, read through the material carefully and determine the author's intentions.
If facts and details were reeled out, then informing the audience is the reason. Description is used to narrate the sequence of events.
Learn more about an author's main purpose here:
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Eddie went to a movie theater with his friends to see the new fantasy flick (The Gremlins Attack the Mouse People) and they sat through the movie twice.
that's one way you could do it. when using parenthetical elements, you want to be aware of what exactly parentheses do--they offer further information, almost like an aside of sorts. it isn't necessarily vital information and most people use parentheses instead of commas to show an exception or give extra information. the best way, i would say, to add parentheses to these sentences is by inserting the "extra" info that follows "flick." the name of the movie isn't necessarily important, but you include it anyways.