91. Although one link in the chain was demonstrated to be weak, but not sufficiently so to require the recall of the automobile.
(A) demonstrated to be weak, but not sufficiently so to require
(B) demonstrated as weak, but it was not sufficiently so that it required
(C) demonstrably weak, but not sufficiently so to require
(D) demonstrably weak, it was not so weak as to require
(E) demonstrably weak, it was not weak enough that it required
KEY :D
請教(D)中的 so....as to 與 so....that 的用法
一直以為 so ...as to 是不對的用法???
另外
(E)為什麼不對呢?enough that + S + V......
是不是因為enough 後面只能 + to => enough to.....