阅读短文，判断正误。

      Hello, everyone. I'm Bill. I have a music lesson today. Mr. Li plays the piano. My friend Jill plays the drum, he is a good drummer. Look at that girl, she is Mary. She plays the violin. There is a boy near Mr. Li, he is Alex. He plays the guitar, and he can play it well. I like singing. I sing a song for them. We are a band(乐队). We play together, we make wonderful music together. We all love music.