假如你是吉姆，是一位英国男孩，今年12岁。请你根据提示，给艾达写一封不少于80个词的信，介绍你和家人的情况。信的格式已给出，不计入总词数。
内容提示：
1. 你有一个弟弟和一个妹妹，妹妹叫贝蒂，只有5岁。弟弟叫约翰。你和约翰在同一个年级，但在不同的班级；
2. 你爸爸是一名医生，你妈妈是一名英语老师；
3. 约翰会说汉语，你只会说一点；
4. 你和弟弟、妹妹通常在星期日上午放风筝，下午做作业。

Dear Ada，
                                                                                                         .
Yours，
 Jim

【考点】书信类．

【答案】Dear Ada，
I'm an English boy. My name is Jim. I am twelve. I have one brother and one sister. My sister is Betty. She is only two. My brother is John. He and I are in the same grade， but in different classes. We go to school five days a week.My father is a doctor and my mother is an English teacher. John can speak Chinese. But I can speak only a little. My brother， my sister and I usually fly kites on Sunday morning and do our homework in the afternoon.
Please write back soon.
Yours，
                                                                                                                                      Jim