is this a pen（变成陈述句）

is this a pen（变成陈述句） 如何把陈述句改为一般疑问句?（英语）例如：this is your pen. Is it a pen 改为陈述句Is it a pen 改为陈述句 把Is that your house ?改为陈述句 I can suim?变成一般疑问句,做肯定回答haue you got a pen?回答变成陈述句 this is a my pen This is a nice pen. This is a pen.(this)are pencily 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 pen?（变复数句） This is a pen.(对画线部分提问）. This a pen.that is a pen,什么 Is this your pen变成肯定句和否定句 This is a pen.（改为一般疑问句）_____ _____a pen This is a pen.就划线提问 this is a pen.改为复数句 this is a pen改成一般疑问句 This is a pen.改为一般疑问句 is this a youe pen 怎样改错