句型转换。

1. Cai Lun invented the paper-making process. (改为被动语态)

    The paper-making process _____ _____ _____ Cai lun.

2. These horses were painted Xu Beihong. (改为一般疑问句)

    _____ these horses _____ Xu Beihong？

3. J. K. Rowling was born on July 31st,1965. (对画线部分提问)

    _____ _____ J. K. Rowling _____?

4. Harry Potter was created by J. K. Rowling. ( 对画线部分提问)

    _____was Harry Potter _____ _____?

5. Walt Disney sold his f'irst drawings to neighbors at seven. (改为同义句)

    Walt Disney sold his first drawings to neighbors _____ _____ _____ _____ seven.