Where should I add the comma

Need this asap what would be some of the drawbacks of using a specific dramatic structure such as freytag's pyramid?

Walking is not the most exciting form of exercise a person can take on for fitness. yet it is low impact and requires no fancy equipment. that makes walking a simple activity for those new to exercise. walking is less likely than other exercises to cause injury to leg tendons and muscles. all it requires is a good pair of sneakers-no cables, stylish outfits, or weights required. of course, a person could increase the benefit of a workout by adding weights or speed walking. identify the main idea of this paragraph. walking is a difficult and safe exercise for beginners. walking is an easy and safe exercise for beginners. walking is a boring and dangerous form of exercise. walking is an exciting and very effective form of exercise.

Read the excerpt from "a pair of silk stockings." but she went on feeling the soft, sheeny luxurious things—with both hands now, holding them up to see them glisten, and to feel them glide serpent-like through her fingers. which best describes the underlying tone of the excerpt created by the connotations of the words “soft,” ”luxurious,” “glisten,” and “serpent-like”? 1. gloom 2. temptation 3. forgiveness 4. suspicion