请按要求转换句型，一空一词。
Do you have a ping-ping bat?(做否定回答)
No,                  .
He likes oranges.(变为否定句)
He                  oranges.
This T-shirt is seven dollars. (就划线部分提问)
                is this T-shirt?
My favorite subject is science. (就划线部分提问)
               favorite subject?
His father’s birthday is on February 23^rd. (就划线部分提问)
        is his father’s       ?