1. He likes playing volleyball with his classmates. （改为一般疑问句）
   ____________________________________________?
2. They are having pizza for dinner this evening.（改为否定句）
   ____________________________________________.
3. I'm interested in collecting stamps.（对划线部分提问）
   ____________________________________________?
4. She speaks French fluently. （对划线部分提问）
   ____________________________________________?
5. The birds sing very nicely.（改为感叹句）
   __________________ the birds sing!
6. They must do something to protect birds. It's very important. （改为同义句）
    It is very __________________________something to protect birds.
7. She'll go birdwatching in Beijing Wildlife Park. （改为否定句）
    ____________________________________________
8. I like the parrot best. （改为同义句）
    Parrot is ________________bird.
9. Sandy keep different kinds of goldfish at home. （改为同义句）
    Sandy keep _______________________________at home.
10. The students are going camping this Saturday.（改为一般疑问句，并作肯定回答）