[求助]大全273

       Efforts to equalize the funds available to school districts, a major goal of education reformers and many states in the 1970’s, has not significantly reduced the gaps existing between the richest and poorest districts.

(A) has not significantly reduced the gaps existing

(B) has not been significant in reducing the gap that exists

(C) has not made a significant reduction in the gap that exists

(D) have not significantly reduced the gap that exists

(E) have not been significant in a reduction of the gaps existing

如果A中变为have的话，对么？可以用existing 么？

这个在于动名词与定语从句的区别

动名词表示的是一种经常性状态，而定语从句表示的是一个具体的状态，所以在这里还是用定语从句合适

是同位语，同位语与与之同位的成分不需要单复数一致。