Based on the given excerpt above which is taken from "To Kill a Mocking Bird", it shows the Scout is evoking the shooting of the rabid dog. This is the scene about the Mad Dog. The answer would be the third option. Hope this answer helps.
The subordinate clause here is A, "as the layers of ash slowly compressed". Subordinate means that it cannot exist on its own, it has to be a part of the main, independent clause.
Answer: A
The past perfect progressive emphasizes the duration of a past action before another action happened. For example, “I had been smoking for 10 years before I quit.” You form the past perfect progressive by using had been followed by an –ing verb.
<span>C.
KC interrupts his teacher's lecture to ask a question.</span>