which is your pen a .a red one and a blue one b.a red one or a blue one c.the red oneand the blue one d,the red one or the blue one哪个对?请说明理由——

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. Is this your pen?--( ).---Is this your pen?A.pardon B your pardon c I beg Is your pen pal a boy?Is your pen pal a girl?(合成一个句子） 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? The following ,which is right?A.my pen has lost.B.My pen is lost and what is that in your( )( is it a pen? which is your pen的答句It is green对不对 Is __ your pen A.that B.this C.her D.his.That is his pen. A:that's your pen.___ is my pen B:Do you __ this is interesting? The pen ______he is writing is mine.A.with which B.in which C.on which D.by which 【解析】 is this a pen ___ your pencil case This is a new pen.( ) it in your pencil case This is _____（definite) a letter from your pen-friend 改错:（Is ）（that ）a（ your） pen? is that a your pen?这句话错在哪儿 Is that a your pen?那个单词错了? 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?