句子改写。按要求完成下列各句。（每小题1分，共5分）
This ruler is mine. ( 改为同义句）
________________________________________.
That’s a family photo. ( 改为复数句子)
________________________________________.
They are good brothers. (改为否定句）
_______________________________________.
The jacket is under the chair. (就划线部分提问）
_______________________________________？
Are these your sisters? (做肯定回答)
________, ________  ________.