Answer:
• "Joe ate his banana." - noun.
• "They ran all the way home." - verb.
• "You are a pretty girl." - adjective.
• "He quietly opened the door." - adverb.
• "The spider ran across the table." - preposition.
• "Paper is made from wood." - subject.
• "Leonard da Vinci painted 'The Last Supper'." - object.