that is his green pen一般疑问句

that is his green pen一般疑问句 this is his green pen 改为一般疑问句 those are her keys 改为一般疑问句 that is his pen变一般疑问句并否定回答 一般疑问句中的指示代词是做的什么成分?如：Is (that) a green pen? It is his pen(改为一般疑问句) that is a pen.改成一般疑问句 That is green pen That is his tape player 改为复数句 I have a green jacket 改为一般疑问句 连词成句：is that green pen his (.) 1.Is that his pen?(改为复数) 2.She is my good friend.（改为一般疑问句） This is his green pen.That is a card.It is an orange.Is that that football is his改为一般疑问句