求高一英语解答题答案The pen __ he is writing is mine.在线等!
问题描述：
求高一英语解答题答案The pen __ he is writing is mine.在线等!
A. with whichB.by which请写出详细解答过程.
答
Awith which
这句话的意思是：他现在正在用着写字的那支钢笔是我的.
The pen with whichhe is writing 是主语从句 is mine(是系表结构做谓语.
定语从句 the pen which he is writing with.