og11-112

The Federal Reserve Board's reduction on interest rates on loans to financial institutions is both an acknowledgement of past economic trends and an effort to influcence their future direction.

C.reduction of interest rates on loans to financial institutions both acknowledge past ecnomic trends and attempt.

原句是正确的，但我选的C。

OG解释是：the plural verbs acknowledge and attempt do not agree with the sigular noun reducton.

但是原句both后面是acknowledgement和effort两个名词啊，为什么reduction不是复数形式呢？

reduction确实是单数没错,因为指的是降低利率这件事情代表后面两个意义,动词需依前面的主词为准.

多分析些题目你就能看出这个原则了.