Is this your pen怎么解释?

Is this your pen怎么解释? Is this your pen Is this his pen?选择疑问句 This not is your pen,your pen is white.改错 is this my pen and that pen your is 怎么连成句子? is this your pen? 为什么答案上面是 yes this is 怎么不用yes it is ... 连词成句：this ,your ,is ,pen ,. Is This your pen?No ,it's__________ Is this your pen?同义句转换 ______me,Tony.Is this your pen? Is this your pen 下一句是什么? E____me.Tim.Is this your pen? Is this your pen?Yes,___(thank). Is this your pen?--( ).---Is this your pen?A.pardon B your pardon c I beg this is pen?怎么改成一般疑问句 Is this her pen 怎么回答 Is this her pen 怎么回答 is this your pen?----yes,it's. 改错 is this a pen ___ your pencil case