句型转换。

1. What's the price of the book? (同义句)

    ___________is the book?

2. She likes English. (变否定句)

    She ____________English.

3. Lily usually goes to bed at nine o'clock. (对画线部分提问) 

    ____________ Lily usually ____________ to bed?

4. I have some books in the backpack. (变否定句)

    I ____________ have ____________ books in the backpack.

5. My friend is a girl. (用a boy变选择疑问句)

    ____________ your friend a girl ____________ a boy?