假设你有个好朋友叫Jack，请根据下列的信息提示，以My friend为题写一篇文章，介绍Jack的个人信息、爱好等方面的内容。
1.我的朋友是Jack，他13岁，来自美国。
2.他的家里有四口人：爸爸，妈妈，妹妹和他。妹妹和他在同一所学校。
3.他爸爸是一位老师，妈妈是一名医生。
4.他喜欢体育课，擅长踢足球，他喜欢在周日和我踢足球。
提示词：体育课：PE ，擅长：be good at......
要求：内容全面，包含所有要点；语句通顺，语法正确；书写规范，表达清楚；60词左右，可以适当发挥。

【考点】记叙文；人物介绍．

【答案】My friend
I have a good friend and his name is Jack.He is 13 years old.He is from America .There are four people in his family.They are his father，his mother，his sister and him.His sister is also a student and they are at the same school.Jack always eats healthy food，so he is tall and strong.His father is a teacher and his mother is a doctor.He likes PE and is good at playing football.He likes playing football with me on Sundays.This is my friend Jack and I like him very much.​