The pencil,with ------I had been writing,was broken .A.which

选A非限制性定语从句把句子还原一下就是i had been writing【 with the pen 】关系词指代先行词,放在介词后面,本题只能用which翻译：我一直用来写字的笔,坏了。 再问： 可以给我讲讲，做这类题的技巧么？ 再答： 1。 判断主句 2。确定先行词 3。 判断先行词在定从做什么成分 4，一些特殊的，就要特殊记啦 比如这道题 1。 主句 The pen was broken, 2。 先行词→pen， ______I had been writing,was broken 是定从修饰pen的再问： 那这个主句是什么： The reason ___________he didn't pass the exam was that he didn't study hard。 A。which B。in which C。for which D。of which 这个有两个从句对不对啊，那选什么？which吗？ 再答： 应该选C reason 是先行词 在定从中做原因状语。 he didn't pass the exam 【for the reason】 was 后面的是表语从句