根据语境，选择括号内合适的单词完成短文。

Hello, I am Bill. Five years ago, I was a little boy. I (like/liked)reading. l didn't like (do/doing) sports. But now I am 12 years old, I'm tall and strong. I can run fast. I can draw well. Look! I (draw/am drawing) a picture of myself in 15 years（十五年后）. At that time, I ( will be/be) a policeman. l can help many people. My father is a policeman, too. He (works/working)hard every day. I want to be a great policeman like him.