Hi SiSi,
How are you?I haven't heard from you for about four years.I hope you and your family are well.
It is really a long long time since we met last time.I remember that we played happily together and learnt from each other when we was little children.How happy we are at that time!But now you are not with me,I have many new friends.However,you are still in my mind.I have became taller and thinner.What about you?I am in Middle 10 senior school.Which school are you in now?When I became a senior student,I found there are much more homework than before.It is very difficult to keep good grades unless you you work.At the same time I have quarreled with my parents many times.It really troubles me.
Many things have changed,but I believe that our friendship will never change.I can imagine you will be very happy when you get my letter.And I am waiting for you reply.
Your friend,
XXX