The idea in line 12 is somewhat compressed. Think about what originally fed the speaker's fires - fires that are now choked. Paraphrase this line in your own words. Sonnet 73 by William Shakespeare

What is the best way to improve the conclusion? add a sentence to the ending that summarizes the writer’s topic. add a sentence to the middle that reflects on the writer’s experiences. revise the final sentence to have a different tone. revise the first sentence to state a future goal.

Compare: what are the similarities and differences between "artificial flavors" and "natural flavors"? why does schlosser explain these two terms in such detail?

It is clearly expressed. what does that mean?