Subordinate.
"Once you finish your work" by itself is not a sentence, therefore it depends on the remaining.
Answer:
14) decided
15) planed
16) was getting
17) pulled
18) had not seen
19) felt
Hope it helps you
Text features
all those things are features of the text
like i pull up a story on the web and it has pictures with captions. those are features
A really good way to find comparisons if you can't think of any is to google the summary of the story and character descriptions from sparknotes, or where ever. That usually helps me when writing c/c essays.