If, however, I could have carried the place on the 22nd of last month, I could by this time have made a campaign that would have made the State of Mississippi almost safe for a solitary horseman to ride over.
Yes! The tense has to stay consistent throughout the sentence! ;)
Both W. H. Auden and William Carlos Williams wrote ekphrastic poems about Pieter Brueghel's Landscape with the Fall of Icarus. Both poems point out that Icarus’s drowning is ignored or goes unnoticed. Williams's poem uses short groups of three lines and an objective tone. Auden's poem uses longer lines and more description, and it refers to ideas and images outside of the painting. Williams provides a matter-of-fact account of what happens in the painting, while Auden connects the painting to the overall idea of suffering.
The statement which best describes the mistake the writer makes in the paragraph is the following one:
The writer loses focus and shifts to another topic.
He starts off by pointing out the overall benefits of exercising, and supports his idea by also giving examples of activities people should engage in. However, focus is lost when the writer begins to address the importance of a balanced diet to the body. That would require a new paragraph.