This is my ball.改成同义句

This is my ball.改成同义句 this is my ring改成同义句 whose ball is this?改同义句 Is this your ball? 同义句 改为同义句 Is this your ball? This is a white ball.同义句 This is my uncle's photo.(改成同义句) This is my comb（改成同义句） 改成同义句 This is my grandfather and this is my grandmother.___ Is this my a ball 改成正确句子 This is a white ball.(改为同义句） is this you soccer ball?改为同义句