this is a red pen.and that is a green pen.（改为同义句） this is a red pen.and that is a___ ___.

this is red a pen的提问 is,a,this,pen,red,连词成句 this is a red pen怎样改为一般疑问句 this is a red pen同义句转换 This is a pen. The pen is a red 怎么改正确在线等 This a red pen.针对a red pen 怎样提问（也就是对划线部分提问）错了，是This is a red pen. this is a red pen.and that is a green pen.（改为同义句） this is a red pen.and that is a___ ___. what color is this pen的回答可不可以是It's a red pen This is an English pen is this a red pen 改为复数句,并作肯定回答is that an english book?改为复数句,并作否定回答 This's a red pen怎么改错? What's this?——___.(①It's a pen.②This is pen.③This is an pen.④It's a pen.) That is her a red pen.改错 This is Jim.His pen is the red.改错 this is not her pen hers is red汉语是什么 pen this red is and biack （.）连词成句急 This pen is red 改为问句,急,快 this is a my pen