阅读短文, 下列问题

    Hello! My name is Joy. I'm a girl. I'm eleven. I'm in Class Eight, Grade Seven. This is my friend, Joan. She is twelve. She is in a high school. She is in Class Seven, Grade Eight. My English teacher is Miss White, but her English teacher is Miss Green. Look！Who's that? Oh, she's my mom. She's a Chinese(语文, 中文) teacher.