句型转换。
1. He sleeps 15 hours a day.(改为一般疑问句并作肯定和否定回答)
— _____ he_____15 hours a day?
— Yes, he _____.／No, he _____.
2. The boy relaxes a long time after school.(改为否定句)
The boy _____ _____ a long time after school.
3. Please be very quiet.(改为否定句)
Please _____ _____ very quiet.
4. He sleeps 12 hours every day.(对划线部分提问)
_____ _____ hours _____ he sleep every day?
5. The girl is four years old.(对划线部分提问)
_____ _____ is the girl?
6. My father is a doctor.(对划线部分提问)
What _____ your father do?
=What _____ your father?
=What _____ your father's _____?