Is this her ruler?改为同义句.

Is this her ruler?改为同义句. This is her ruler.(改为否定句和一般疑问句) ___ ___ ___ her ruler.____ ____ her ruler? It's my pencil case 改为否定句This is her ruler 改为一般疑问句 is this your ruler? 改为复数句 Are these her erasers?改为单数句 This is her ruler同义句This ruler __ __ . That is her ruler改为同义句 It is her ruler改为一般疑问句, is this her ruler?的同义句 Is this your ruler?改为同义句 This is a ruler 改为一般疑问句 This is a ruler改为一般疑问句 This is my ruler (改为否定句) This is my ruler.(改为一般疑问句) this is a ruler 改为复数 Is this ruler?(改为否定句） This is his ruler.(改为否定句) this is david()ruler is bluehis，her，he选择 用英语单词 联句 1 it,is,no,his,pencilbox.2 This,is ,pencil box,hers.This is her pencil box (改为否定句）Is this your ruler?(同义词转换）Is( ) ruler ( )