When I was six years old, I began to go to school. The first school (which) I attended was a primary school. There were many subjects (which were taught in the school, such as Chinese, arithmetic, history, geography, drawing and so forth.
Since I was (became) a student, I studied very hard. My parents were quite proud of me.After I had studied there for three years, I entered a junior high school. When I was twelve years old, I became a student of a senior high school. I still studied very hard. Except on sick leave I was never absent from class. Everybody looked upon me as a model student.