下面各题划线部分都是错误的，请在题后横线上改正。

1. On Sunday, he's going to playing football. 改为: ___________________

2. She is listen to the music. 改为: ___________________

3. They're going to has a big trip. 改为: ___________________

4. I'm go to buy an English book in the bookstore. 改为: ___________________

5. What is you going to do? 改为: ___________________