Homophones sound alike but differ in use. Which spelling shows possession: '___ book is on the table'?

"Your" shows possession, meaning the book belongs to the person being addressed, which is exactly what the sentence "Your book is on the table" intends to convey. Homophones like this sound identical when spoken aloud, so only spelling and context distinguish their very different grammatical roles in writing.

"You're" is a contraction of "you are" and would create a nonsensical sentence here ("You are book is on the table"). "Yore" is an old-fashioned word meaning "long ago," as in the phrase "days of yore," and has nothing to do with ownership.

Your/you're is one of the most commonly confused homophone pairs in written English, precisely because the two words sound completely identical in speech and only diverge in spelling, making the mistake invisible in conversation but glaring in text.