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 is a red pen怎样改为一般疑问句 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 This pen is red 改为问句,急,快 this is a pen.改为复数句 This is a pen.改为一般疑问句 This is a pen.(改为复数形式) is,a,this,pen,red,连词成句 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. 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 what color is this pen的回答可不可以是It's a red pen This's a red pen怎么改错? 回答：My jacket is red and white.提问应该怎么提?It is a red pen.(改为否定句） this is a red apple改为一般疑问句 this is a red flag 改为同义词怎么改 This is a pen.（改为一般疑问句）_____ _____a pen