请以“My favorite teacher”为题，根据以下提示，用英语写一篇不少于60词的短文。标点符号不占格。
提示 (短文须包含下列要点)：
1. What subject does your favorite teacher teach?
2. What does he/she look like? And how about his/her personal traits(性格)?
3. Tell a story about how he/she helped you.
4. What do you want to say to him/her when you meet in the future?
注意：短文中, 老师的姓名请一律使用Mr Wang或Ms Wang，不得出现任何真实人名、校名及其它相关信息, 否则不予评分。
My favorite teacher