The theme is A birthday of my life
When could is used it refers to an ability that <span>a person generally had in the past or to something that was generally possible in the past, can is present.
I could wash the dishes for you. (having the ability to do it)
I can wash the dishes for you. (its actually going to be done)
hope this helps you! :-)</span>
Answer:
The author's use of frightening imagery with a setting named "Death Swamp" creates tension.
Explanation:
I hope this helps! tell me if i'm wrong.