Rewrite the following sentences(按要求改变句型)
1. Mr. Green is a driver. He’s old. (两句合并)
Mr. Green ________________ driver.
2. They like sweet juice. (改成单数句)
_____________ sweet juice.
3. This is his exercise book. (对划线部分提问)
_____________________ is this?
4. Ben’s father likes to drive a car. (改成否定句)
Ben’s father ________________ to drive a car.
5. His sister is a pupil. (对划线部分提问)
________________________?