Answer:
For each sentence, select the aspect of the underlined verb(s).
She pretends to be a police officer by dressing up.
✔ simple
Will you change the sheets tonight?
✔ simple
The elephant had eaten all the hay.
✔ perfect
Between 1981 and 1989, Ronald Reagan was leading the United States
progressive
The second answer. Im 95% sure.
Answer: When writing in first-person, the story the author is telling becomes much more personal, and therefore makes readers feel their emotions much more than if a narrator was describing the way a person in the story felt.
There are multiple reasons. The most simple answer is because the rain that we consider acidic has a low pH; it has a higher amount of hydrogen ions.
Why does this happen? One is because of the release of sulfur dioxide into the environment to which we humans often contributed. However, it is also possible that increased levels of nitrogen oxide would have this effect as well. And nitrogen oxide can be released through lightning or volcanic eruptions, so these are occurences in nature that don't have anything to do with humans.