this is a red pen怎样改为一般疑问句

This is a pen. The pen is a red 怎么改正确在线等 this is a red pen怎样改为一般疑问句 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 red a pen的提问 is,a,this,pen,red,连词成句 this is a red pen同义句转换 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___ ___. is this a youe pen 怎样改错 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? this is a red flag 改为同义词怎么改 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 The pen is red改成一般疑问句怎么改 this is my pen.改一般疑问句 pen this red is and biack （.）连词成句急 This pen is red 改为问句,急,快