关于定语从句（初中）

Question

逐个回答

1. 当关系代词在从句中作宾语时，从句可以没有主语吗？如：
This is the tool that use to eat food.

2. 关系代词是介词的宾语，但介词不是前置时，关系代词可以是that吗？如：
Is this the library that you borrow books from?

3. 在2中的介词如果是of，那下面句子有没有错，错在哪里：
(1) The boy the bag of whom is lost are crying.
(2) The boy of whom the bag is lost are crying.
(3) The boy whom the bag of is lost are crying.
(4) The boy that the bag of is lost are crying.

Answer 1

1 that 是从句的主语，应该是that is used to eat food. 这里的that不能省略
2 不可以，表示地点的关系代词是 where
3 都是错的 物主代词的关系词是whose
The boy whose bag is lost is crying.追问

1. 我说的是This is the tool that “people” use to eat food.中"people"能不能省略。

2. 我举的例句好像不恰当，换一个：Have you heard the story that I've talked about with them?

3. (1)(2)句一定是可以的（因为whose sth. 可以改为 of whom sth. 或 sth. of whom），其实我是想知道(3)(4)句可不可以

追答

1 不能
2 不能， about的宾语不能跑到前面主句里
3你的意思whose sth = of whom sth ？没听说，不习惯，不知道
那whom 和sth 什么关系呢，费解。