用所给词的适当形式填空。
1. Class 3 ______________ (be) not sad.
2. They are ______________ (laugh) at John's funny goal.
3. He ______________ (kick) the ball.
4. The ball ______________ (bounce) off his head.
5. How's John ______________ (feel) now?
6. My mother is going to buy ______________ (I) a new skirt.
7. I ______________ (fail) my Chinese test.
8. ______________ (do) Amy feel happy?