This is a fact with which every schoolboy is familiar这个句子是宾语从句吗?which 有没有在从句中做成分?为什么有个with麻烦解析一下这句

是定语从句,修饰fact,which在从句中作宾语。。。。every schoolboy is familiar with the fact(which).
be familiar with 是一个句型

顺序是
every schoolboy is familiar with the fact`

是宾语从句,
be familiar with 是一个短语,对...熟悉的意思.which 引导的从句做fact的宾语补足语.
这个句子=This is a fact which every schoolboy is familiar with

这个是定语从句，不是宾语从句，which代替先行词fact.with是短语be familiar with中带的。