1.Tim.
2.Yes,he is.
3.In spring it's rainy warm and wet.
4.He's 10 years old.
5.He likes meat,fish,swimming and playing football.
回信如下：
Dear Tommy,
I'm Tim.I'm ten years old like you.I have read your letter.I long to be your penfriend.So I think I need to tell you something about me.I live in Shanghai with my parents.The weather there is quite friendly.But recently it rained a lot.As for my interests,I like listening to music and running.
It'll be really nice to be a penfriend of yours.
Peace.
Your friend,
Tim