This is my watch.怎么变特殊疑问句变为复数句又是怎样的？

This is my watch.怎么变特殊疑问句变为复数句又是怎样的？ This is my grandma.怎么变过去式? This is her watch.[变复数】 1、This is a watermelon .2、It is a yellow shirt.3/That 's my watch.变为复数怎么变 Whose is that watch 怎么变同义句?同义句转换：1.Whose is that watch？（ ）2.That eraser is hers .（ 3.This is my pen.（ ）4.Whose cups are those？（ ） This is my watch改为否定句 This is my watch改为一般疑问句 this is my clock怎么变一般疑问句 this is my watch 和here ismy watch 区别? This is my sister?怎么变复数形式?代词my用变复数吗? this is my my friend(变复数) This is my watch 怎么改成一般疑问句并做肯定回答 this is my daughter怎么变成否定句?还有this is my dress.否定句一般怎么变？ This is mine watch. This is my watch. 哪个是对的?为什么? This is my watch.This is mine watch.哪个是对的?为什么? Is this your watch?怎么翻译? my watch is on the sofa变否定句 This is my ID card.变成一般疑问句( )this( )ID card 请问是怎么变的?