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1. The speculative fever of the Roaring Twenties infected (rich and poor alike’ vast quantities of people were dangerously overextended), credit was absurdly easy ot obtain, and most brokerage houses required only ten percent cash for stocks bought on “margin”
A)
C) rich and poor alike; great numbers of people were dangerously overextended
E) both rich and poor; great quantities of people were dangerously overextended
WHY THE ANSWER IS “C” NOT “E”????  ALIKE 怎么这样用？？？他应该有什么用法？？？
NUMBER OF 可以有什么ADJ 修饰？？？

2．Idioglossia is a phenomenon, incompletely understood at best, (where two persons develop a unique and private language with) highly original vocabulary and syntax.
A)
E) in which two persons develop a unique and private language with
WHY THE ANSWER IS “E”???  WHY用in which??????????

2. Repelled by bodily punishments such as maiming and branding, (the idea of penitentiaries were reforms of the penal system by Quakers.)
A)
C)Quakers suggested the penitentiary as a reform of the penal system
D) Quakers suggested that the penal system be reformed as penitentiaries
Why the answer is “C” is “ suggest as “  right?????????