What do I underline I’m confused

1.the
2.a ,the
3.an
4.the
5.the
6.an
7.a
8.the
9.an
10.a
11. The
12. The
13.a
14.a
Adjective.
ad·jec·tive
/ˈajəktiv/
plural noun: adjectives
a word or phrase naming an attribute, added to or grammatically related to a noun to modify or describe it.
Basically an adjective describes something.
Example: The brown cat ate its food.
Adjective: brown
Reasoning: It is describing the color of the cat. Nothing else in the sentence is being described.