Which is your pen?The pen on the shelf is my pen.问句里的which是对

Which is your pen?The pen on the shelf is my pen.问句里的which是对 The following ,which is right?A.my pen has lost.B.My pen is which is your pen的答句 Your pen is on the desk.是哪个问句的回答? this is the pen which was given by friend与this the pen which Is that your pen on the desk? Is ()pen on the dresser 把下列句子改成复数The leaf is turning yellow.Which is your pen?What i 1.This is the pen with which i 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? the pen that you want is on the desk 能不能用which 为什么 the, is ,pen ,green 连词成句是问句