Answer:
1. isn't
2. aren't
3.is
4.are
Explanation:
i think 4 is meant to be firefighters
He discovers how to animate lifeless matter
^^^^^^^^^^^^
The answer would be sentence structure. This is because chronology is when you organize a piece of writing in the order of how things happen, order of importance is when you organize a piece of writing in order of importance. And comparison and contrast is when you organize your paper by comparing and contrasting atleast 2 different things.
It is true that any interpretation that can be defended with evidence from the text is a valid topic for a critical essay.
