The answer should be their
Tells a true story of something that happened to you.
I agree with ur answer....under the surface...because of the context " drilled into the ground "
Explanation:
Poems have shorter lines than paragraphs, and they are surrounded by white space. ... Line breaks and white space help readers know how to read a poem out loud and inside their heads. Sometimes one makes a weeny pause at the end of a line, to honor the rhythm and emphasis placed there by the poet.