Question

讲解一个英语句子

__________the fibers are combed so that they will all be turned in the same direction.
4个选项
In which，Where，There,These
我知道选第一个，但是谁能给我讲解一下~主要讲语法，顺便翻译一下~
因为我们明天要上去讲解一下~~
所以麻烦给我讲解一下~谢谢~~
以前高中学的语法，好多都忘了，罪过~~
这段完整的话是：
Cotton comes from a plant of that name. when the plant is mature, the cotton grows in a white ball around the seed. To prepare the cotton for market, the seed must be remove from the cotton fiber. This is done by a machine called the cotton gin. Then the cotton is packed into huge bundles called bales,which are sent to the mills.________the fibers are combed so that they will all be turned in the same direction.Next , the fibers are spun into thread. From the thread, the cotton is woven into cloth .

Answer 1

在句子which are sent to the mills.________the fibers are combed so that they will all be turned in the same direction中mills是先行词，________the fibers are combed 是定语从句，从句中不缺少主、宾、表、定语，故应用关系副词，而in which=where表示地点，所以该题应选in which和where

Answer 2

我觉得There还合适合适点，没有上句的话which指啥都不知道，孤句是不可能选第一个的。