阅读，回答问题。

　　Hello．I'm Mary Smith．I'm from USA．I'm a student in a middle school．I'm 14 years old．I like singing and playing the violin．There are four people in my family．My mother is a my math teacher and my father is an engineer in an air-conditioner company．My brother and I are twins．He likes swimming and playing football．We often go to school on foot．Because we live next to the school．I'd like a pen pal from China or Japan．Please write to 201 East Street, Washington, D．C．,3409872, USA．

1．What's Mary's hobby?______________

2．How does Mary go to school?________

3．Where does Mary live?_____________

4．How old is Mary's brother?__________

5．Where does Mary come from?________