求助！！！！！

superwangzhen

9.Federally imposed restrictions on how much they may pay small savers has made difficulties for savings banks as they are competing with such unregulated investment vehicles as money market certificates.
(A) has made difficulties for savings banks as they are competing with such
(B) has made difficulties for savings banks competing with such
(C) have made difficulties for savings banks as they are competing with
(D) have made it difficult for savings banks to compete with such（D）
(E) have made it difficult for savings banks as they are competing with such
D中的it是什么成分啊?

superwangzhen

还有一题~~~~~
203.    391. In large doses, analgesics that work in the brain as antagonists to certain chemicals have caused psychological disturbances in patients, which may limit their potential to relieve severe pain.
(A) which may limit their potential to relieve
(B) which may limit their potential for relieving
(C) which may limit such analgesics’ potential to relieve
(D) an effect that may limit their potential to relieve
(E) an effect that may limit the potential of such analgesics for relieving


这题中D哪里错了啊 ? 为什么没有E好啊。。。


206.    394. In one of the most stunning reversals in the history of marketing, the Coca-Cola company in July 1985 yielded to thousands of irate consumers demanding that it should bring back the original Coke formula.
(A) demanding that it should
(B) demanding it to
(C) and their demand to
(D) who demanded that it
(E) who demanded it to
此题选D
做题思路是什么啊。。不会做啊。。。。

superwangzhen

没人帮我呢

bispham

9， make it difficult to do sth，it指代不定式to do sth.貌似是固定搭配，和it is adj to do sth中的it作用差不多
203, their就近指代patients，错