Which is your pen?The pen on the shelf is my pen.问句里的which是对回答中的主语还是定语提的问?

Which is your pen是不是就等于Which pen is your pen?我觉得在Which is your pen中which是对主语提问,在Which pen is your pen中which是对定语提问. that is your pen. Which is your pen?The pen on the shelf is my pen.问句里的which是对回答中的主语还是定语提的问? which is your pen的答句It is green对不对 Which is your pen是对句中哪个成分提问?Which pen is yours?又是对句中哪个成分提问? This not is your pen,your pen is white.改错 what is your pen colour __(这儿)is your pen Is this your pen Is this his pen?选择疑问句 连词成句：this ,your ,is ,pen ,. Is This your pen?No ,it's__________ Here is your pen?请回答 how much is your pen?做回答 what color is your pen 答句 Is that your pen?作否定回答 Is your pen red?-------NO（）（） Is this your pen?同义句转换 ______me,Tony.Is this your pen?