问3道英语的句型转换题.
The dog likes to follw people.（对follow people提问）
______does the dog like ______ ______?
She should go to see a doctor.（对go to see a doctor提问）
______should she ______?
Children need to sleep 9 hours a night.（对9提问）
______ ______ hours ______children ______ ______ sleep a night?