介词+who+n+从句例子
Last month, part of Southeast Asia was struck by floods, from ________ effects people are still suffering．
A. that B. who C. tho D. what
解析：
1. 动词短语suffer from；
男孩遗精2. 介词from+who构成的非限制性定语从句。
东方明珠塔简介3. 定语从句中的who作effects的定语。
一万个理由歌词
首先将这个题目改为两个简单句：
包括的近义词Last month, part of Southeast Asia was struck by floods. People are still suffering from their effects.
注意：在后一句中，与“洪水”floods有关系的词是their。由于their是用作定语，所以将其变为关系词代词who（也有人称之为关系形容词）而构成from who effects来引导定语从句。
tfboys歌曲大全
Last month, part of Southeast Asia was struck by floods, from who effects people are still suffering．
再举一个将两个简单句合并成一个复合句的例子：
快手网名女Lao Li was a quick-witted under grounder. He cleverly escaped from his captors. 老李是一个机智的地下工作者，他巧妙地从捕获他的人手中逃脱了。
后一句中的his作定语且与前句中的under grounder有关系，所以关系代词要用who。变为定语从句便是：
Lao Li was a quick-witted , from who captors he cleverly escaped.
地球清洁工>雨思
