Which of the sentences below uses the contraction you're correctly?
A. In case it rains, you should take you're poncho.
B. You're going to be late for practice.
C. You're practice has been canceled today.
D. Hurry, or you'll be late for you're practice.
Explanation: You're means You are. The only sentence that it makes sense in is B. "You're going to be late for practice." In other words "You are going to be late for practice."