阅读短文，选择正确的答案。
John is an English boy. He is thirteen years old. He lives in London（伦敦）. He studies English, Science, Art and PE at school. He likes Chinese very much. He also likes singing Chinese songs. He has a Chinese friend, Wang Bing. He usually writes emails to Wang Bing on Saturdays. He helps Wang Bing with his English and Wang Bing helps him with his Chinese. They learn from each other.
(   ) （1）How old is John?
A. 3       B. 13         C. 30
(   ) （2）Where does John live?
A. In the UK        B. In China        C. In the US
(   ) （3）Does John study Chinese at school?
A. Yes，he does．    B. No，he doesn’t．   C. Sorry，I don’t know．
(   ) （4）What’s John’s hobby?
A. He likes singing Chinese songs．   B. He likes writing emails．
C. He likes studying English．
(   ) （5）What’s the meaning of “learn from each other”?
A.相互学习  B.一起学习   C.相互写电子邮件