Final answer:
Crusoe finds Friday's gratefulness admirable.
Step-by-step explanation:
Crusoe finds Friday's gratefulness admirable, as shown when Crusoe saves his life. This trait is highlighted throughout the story, as Friday expresses his gratitude towards Crusoe for rescuing him from cannibals and providing him with shelter and companionship. Friday's gratefulness resonates with Crusoe and strengthens their bond.
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