(In the living room)Sarah:What are you doing, Jasper? Jasper:I'm hanging balls on the tree. Can you help? Sarah:Sure. Let's do it together. (After ten minutes)Sarah:Can we take a break? Jasper:No. Tomorrow is Christmas Eve. Let's hurry.Sarah:OK. Wait! Tomorrow is December 23. It's not Christmas Eve. Jasper Oh, you're right. Maybe we can do it tomorrow.