Which sentence shows the correct use of a common homophone?

Question

The art teacher thought you’re drawing was exceptionally detailed.
Some of the neighbors just saw you’re dog running down the street.
I think you left your biology notebook on the bleachers yesterday.
If you want to finish the assignment, your going to need another pen.

Answer 1

The correct sentence that shows the proper use of a common homophone is:

"I think you left your biology notebook on the bleachers yesterday."

In this sentence, "your" is used correctly to indicate possession. The other sentences misuse "you're" (you are) in place of "your" (possessive form), and "your" in "your going" should be "you're" for the contraction "you are."