阅读下面短文，从所给的四个选项中选出最佳答案。

    I am a Middle School student. I am a girl. My name is Wang Ling. I am 12. I am in No. 7 Middle School. I am in Class 2, Grade 1. There are 23 boys and 22 girls in my class. Miss Liang is my English teacher. She is a good teacher. We all like her, and we all like English very much. Every morning I practice English with my classmates. I want to write something about Britney Spears on the blackboard. She is from America（美国）. She is 23 years old. She is my favourite singer（歌唱家）.