阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填人一个适当的词或使用括号中词语的正确形式填空。

Dear Betty,

    I am an American schoolboy. My name is John White. I am ____ (twelfth). I have two brothers. My brothers and I are all at. school. We go to school from Monday to Friday. We don't have any classes ____ Saturdays or Sundays. My father and mother ____ (be) teachers. They say that ____ (Chinese) is great, and that Chinese people are very ____ (friend). I want ____ (travel) around China. I think it will be very interesting, won't it? I like reading. Now, I am reading ____ book of Chinese stories. They are very interesting. My brothers ____ I like playing football and basketball. ____ do you like to do?

    Let's be friends. Please ____ (writing) soon.

                                                                                                                                                                                                                          Yours,

                                                                                                                                                                                                                 John White