求教几个SC问题 欢迎大家讨论

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以下是菜鸟在整理错题的时候发现的问题，是刘振民的语法书上的，所以还没有找到OG对应的题号，请大家表介意啊。。Google 过了也没有很明白，烦请各位NN不吝赐教~~~
1. The bank acknowledged that they are and will continue to experience difficulties as it attempts to deal with the precipitous fall of the dollar against the yen and the dislocations reflected in the stock market decline.

(A) they are and will continue to experience diffi-
culties as it attempts
(B) they are and will continue to experience diffi-
culties as they attempt
(C) it is and will continue to experience difficulties
as it attempts
(D) it is experiencing and will continue to experi-
ence difficulties as they make an attempt
(E) its difficulties are likely to continue as it attempts
关于E选项带入句子，不是很明白句意，D为什么不能选。
2.Contrary to popular opinion, the movement toward a service economy is leading neither to lower standards of living, more of an unequal distribution of income, or displacing the physical production of goods.

A. leading neither to lower standards of living, more of an unequal distribution of income, or
B. leading neither to lower standards of living nor a more unequal distribution of income, or
C. not leading to either lower standards of living nor to more of an unequal distribution of income, and neither is it
D. not leading to lower standards of living, more of an unequal distribution of income, and it is not
E. not leading to lower standards of living or to a more unequal distribution of income, nor is it
除了Neither  和 either 的搭配问题什么的，整个句子的结构不是很懂
3.The demand for airplane mechanics is expected to grow about ten percent a year in the next decade, largely because new federal rules calling for major modifications to older planes and because the airlines are adding hundreds of new jets.
(A) new federal rules calling for major modifications to older planes
(B) new federal rules, which call for major modifications to older planes
(C) new federal rules call for major modifications to older planes
(D) major modifications to older planes called for by new federal rules
(E) major modifications to older planes are called for according to new federal rules
选C而不选A的原因是，因为demand么
4.The current administration, being worried over some foreign trade barriers being removed and our exports failing to increase as a result of deep cuts in the value of the dollar, has formed a group to study ways to sharpen our competitiveness.

A. being worried over some foreign trade barriers being removed and our exports failing
B. worrying over some foreign trade barriers being removed, also over the failure of our exports
C. worried about the removal of some foreign trade barriers and the failure of our exports
D. in that they were worried about the removal of some foreign trade barriers and also about the failure of our exports
E. because of its worry concerning the removal of some foreign trade barriers, also concerning the failure of our exports
C选项的worried在句子中做什么成分啊
5.Discrimination in wages paid in occupations that are predominantly male over the predominantly female have given rise to substantial differentials between the wage of housepainters and secretaries and between the wages of parking-lot attendants and library assistants.

(A) paid in occupations that are predominantly male over the predominantly female have
(B) paid in occupations that are predominantly make over those that are predominantly female have
(C) that favors predominantly male occupations over the predominantly female have
(D) that favors predominantly male occupations over those that are predominantly female has
(E) paid in predominantly male occupations over the predominantly female has
D和E的差别是句子的简洁有效性么
6.The decision by one of the nation's largest banks to admit to $3 billion in potential losses on foreign loans could mean less lending by commercial banks to developing countries and increasing the pressure on multigovernment lenders to supply the funds.

(A) increasing the pressure
(B) the increasing pressure
(C) increased pressure
(D) the pressure increased
(E) the pressure increasing
less lending 和increased pressure  要怎么平行