Whose ruler is this?

Whose is this ruler?(同义句) whose ruler is this的同义句 whose ruler is longer? 英语翻译1：is,ruler,whose,that（?）2：not,this,my,shirt,is（.）3：blue, ( ) ruler is this? Is this red ruler ( this ruler is-----? is this your ruler this is his ruler This is "a ruler". This is .ruler..ruler is bule. whose ruler is that?同义句