As time was elapsing, Chase was becoming fluent in the futile language. He had no purpose in learning German but his parents harassed him into it. Sure, his family was German and they visited once a year but they always spoke English when they were there. The whole ordeal irked Chase but he couldn't let his persistent parents down, their wishes not being granted was lethal to Chase as he just wanted to please them. But he continued to be evasive to the task.
We will need the excerpt to answer this question. Let me know if you add it or if my phone just isn’t loading.
I'm assuming the underlined conjunctions are <em>both </em>and <em>and </em>(because you didn't underline any, and those are the only two conjunctions in the sentence).
Those conjunctions are called correlative conjunctions - this means that they are connecting two items which are equally important. So, this woman saw both Billie Holiday and Ella Fitzgerald - and both of those artists are important to the woman.
For a more intruiging writing, more interesting for the reader. it creates a better more imaginitive picture for the reader