Final answer:
The question refers to a character named Marty's mom and what she did to extend the lifespan of shoes. The answer would depend on the context from the literature it is taken from but encompasses actions like using shoe polish, adding insoles, inserting newspapers, or rotating the use of shoes.
Step-by-step explanation:
The question "What did Marty's mom do to make shoes last longer?" refers to a specific action taken by a character to extend the lifespan of footwear. Without context, it is challenging to provide a definitive answer, but such activities are common in literature that touches on themes of frugality or during historical periods of scarcity. Actions like using shoe polish, adding extra insoles, inserting newspapers inside shoes, or rotating the wearing of different pairs of shoes can all serve to make shoes last longer by protecting them, providing extra cushioning, absorbing moisture, and evening out the wear and tear. If the question is derived from a particular book or story, consulting that text would provide the specific answer the student is looking for.