This is my ruier.(改为复数形式）

This is my ruier.(改为复数形式） what’s the price of this ruier?改为同义句 The ruier is under his bed.(改为否定句) This is my friend This ( )( )my friend(改为否定句) This is my sister.改为复数形式、 This is my brother.(改为复数） This is my friend 改为复数形式 This is my dictionary.改为疑问句 This is my eraser 改为一般疑问句. This is my cousin.改为复数形式. This is my uncle (改为一般疑问句) this is my friend改为疑问句 this is my friend.(改为否定句) this is my teacher.改为复数句子 This is my ciassroom.(改为疑问句） This is my grandmother.改为否定句 This is my father()改为否定句 This is my room 改为否定句