句子改错疑问,求大神解答

tiantiannewyork

The steel industry has changed radically over the last two decades, as large, integrated company such as Bethlehem Steel once conducted operations from mining at one end of the process to shipping at the other have greatly downsized, or in some cases shut down altogether.
A. as large, integrated company such as Bethlehem Steel
B. as large, integrated companies, such as Bethlehem Steel, that
C. with large, integrated companies, such as Bethlehem Steel, that
D. While large, integrated companies, such as Bethlehem Steel, that
E. and large, integrated companies such as Bethlehem Steel

友子们, 如上真题正确选项B. 比较疑惑的一点是为什么一定要加that, 定语从句中that 一定不能省略吗? 求大牛赐教. 感恩.

tiantiannewyork

顶自己一下

天天练哦

我觉得是可以不加的，但是问题是没这个选项啊。

tiantiannewyork

天天练哦 发表于 2023-2-17 15:24
我觉得是可以不加的，但是问题是没这个选项啊。

同意！