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?
问题描述：
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?
答
e.g:The red pen is mine.对主语the red pen提问用前者,对定语red提问用后者