補充-67

67.   According to some economists, Japan is in danger of plunging into a depression that, with double-digit unemployment, could severely strain a society that regards lifetime employment as a virtual right of citizenship.

(A) that, with double-digit unemployment, could severely strain

(B) that, because of double-digit unemployment, could be a severe strain for

(C) with double-digit unemployment, and it could severely strain

(D) with double-digit unemployment and could be a severe strain（A）

(E) with double-digit unemployment and could severely strain

其實想問的就是為什麼一定要that?c看來沒問題呀.

看過以前的帖子一到that,which或直接用動詞時大家都不用討論的.看來我還被些simple concepts 煩着.

你是台湾人？不好意思看不懂繁体。能用简体么
用that是因为它是文中的修饰成分，去掉会改变文中的主次结构进而改变意思

A是定语从句。

B的逻辑意思不对，不是 could be

C的it只能指代japen，逻辑意思不对

D的后面could 的subject也是 japen，逻辑意思不对

E同理