Dear Grandpa and Grandma：
I am now 165 centimetres,my sister is two centimetres shorter than me.She is also lighter.
We are good at PE,but my sister runs slower than me.I am good at long jump,I jump farther than her.My sister does well in high jump,she jumps higher than me . We often run on the playgroung after school.
My sister and me hope to see you . Come and visit us soon.
Love.
xx