1. 句型转换。

1. （1） They usually send out the sky lanterns during Spring Festival. (改为被动语态)

   The sky lanterns  usually  during Spring Festival.

3. （2） The common things are turned into objects of beauty. (改为一般疑问句)

     the common things  objects of beauty?

5. （3） The toy is made of plastic. (对划线部分提问)

    the toy made of?

7. （4） This kind of food is made by hand. (对划线部分提问)

    this kind of food made?

9. （5） They lock the door when they go out. (改为被动语态)

   The door  when they go out.