the pen____he is writing is mine

the pen____he is writing is mine the pen____he is writing is mine. A. with which B.by which 请 The pen.He is writing is mine的意思 The pen ______he is writing is mine.A.with which B.in which The pen _______ which he is writing is mine. A with B in C o 求高一英语解答题答案The pen __ he is writing is mine.在线等! 单项选择：俩道与定语从句有关的：The pen )he is writing is mine . The writing-brush is mine He has taken it away改成定语从句、 The pleasure is mine The future is mine The choice is mine. The sky is mine