假如你是 Li Hua,请根据问题提示,给你的笔友 John写一封回信.要求:书写规范,语句通顺.
（1）Changes（变化）about you.
（2）Where did you go this summer holiday?
（3）What did you do?
（4）How was your summer holiday?

Dear John,
Let me tell you something about me.
Before,______.
Now,______.
I ______this summer holiday.
I ______.
My summer holiday was ______.
Li Hua