What does it mean when Esperanza describes Rosa Vargas' kids by saying that they, "bend trees and bounce between cars and dangle upside down from knees
and almost break like fancy museum vases you can't replace?

When Rosa Vargas' kids kept saying that they, "bend trees and bounce between cars and dangle upside down from knees and almost break like fancy museum vases that you cant replace", they meant that life is short, live the best life you can because even with what is happening in their life they are still living their life.

Explanation:

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)