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.
