Final answer:
The revised sentences have been restructured to maintain a consistent form, ensuring that each series or list within the sentences uses parallel structure for improved readability and style.
Step-by-step explanation:
To create sentences that are parallel in structure, it's important to keep the items in a series consistent in form. Here are the rewritten sentences reflecting parallel structure:
Cathy was not only Sarah's sister but also her mentor.
If you go to the bookshop, please remember to pick up your books, buy some stationery, and look for the latest novel.
I spent four hours with Mr. Jonathan reviewing my project performance, evaluating my targets, and discussing my future prospects with the organization.
Mr. Johnson's speech was imprecise, monotonous, and omit-worthy.
John likes hiking, swimming, and taking afternoon naps.
They will neither admit their mistake nor apologize.
Mrs. Davis needs a new sofa, table, and lamps for her TV lounge.
Literature classes teach students to analyze texts, think critically, and write better.
He is a man of great talent, ability, and intelligence.
They finally made the decision to go to university and what courses to take.
Every morning of our vacation, it either rained or snowed.
He would rather play in the yard than do his studying.
By adjusting the forms of verbs, nouns, or phrases to match across lists or comparisons, we improve readability and style. This principle of writing is known as parallelism.