The first two are parallel: "Bernie not only forgot <u>his one-year anniversary with Rachel</u> but also <u>he missed his father's birthday</u>." His and the name of a person, as well as their special day, are mentioned in each of the underlined phrases. Although they do not sound the same and may not have the same number of words, the construction of meaning is the same and the number of syllables is roughly the same. In, "Stan is a <u>voracious reader</u>, an <u>expressive writer</u>, and a <u>skillful painter</u>." all the underlined things are exactly two words, a strong adjective, followed by a -er hobby/occupational word. This would be more so the organization of ideas, because each clause has a slightly different meaning due to the different connotations of the adjectives used.
Hope that clears it up for you so that you can do it yourself next time!
If you're asking for main idea, the main idea or thesis statement sentence is sentence 1, where they explain what the passage is about.
Answer:
The social costs of cell phone usage are caused from the unhealthy addiction, interfering with ordinary activities in daily life as well as causing conflicts among family members or relationships in the society.
This is because people when uses phone for much time, they have the symptoms that an addict may have. They rely on phones to lift their moods. due to this dependence, when there is no phone in their sight, they may have anxiety or be in panic, which is the major cause for their bad attitude, temper influencing negatively their daily life and relationships.