This is my book改为同义句
This is my book改为同义句
IS this his book?改为复数句 This is my pencil.改为同义句
This is my book and that is your book.(改为同义句)
this is interesting book改为同义句
This book is interesting改为同义句
This book is big .(改为同义句)
同义句转换This is my book.
This is my backpack改为同义句
this is my pen 改为同义句
This is my ring.(改为同义句)
This book is difficult to understand.改为同义句
whose is this math book?(改为同义句)