根据短文内容，选择正确答案。
C
Dear Ms. Li,
    I'm very glad to write to you. I'm a junior student. I have a lot of troubles these days. Every day I have a lot of homework to do at school. I don't have enough time to sleep. I nearly have no time to do sports. My friends and I can hardly find time to talk or play together. When I get back home from school, I have to do my homework. I'm not allowed (不被允许) to watch TV, surf the Internet or listen to my favorite music. I feel worried. I miss those old days when I was in primary school. At that time, I had a lot of time to have fun. I don't know what I should do. Could you please give me some suggestions?
    Best wishes
Daisy