Dear my friend， Tommy：

Thank you for your last letter.here are photos of me and my sister twin Coco. As you can see ， in some ways we look the same，in some ways we look different. We both have black hair and black eyes.Alough my hairs is shorter than hers.She is more outgoing，I am quieter.I think I am smarter than her.WE both like sports， alough she is more athletic than me.I think I am smarter than her.My favorite sbujects are phycics and chmistry 。 Her favorit subject is P.E. However， we both like going to the parties.

Yours，Christina.