og 144

144. 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

很菜的问题....

1. 我搞不懂主语是efforts还是a major goal. 这怎么辨别啊?

2. 还有"____, X____" 这类句型中, X 是修饰前句的主语还是句末的词呢?

A, B, is ... . A是主语, B是同位语.

A, B is ... . A是同位语, B是主语.

可是同位语要求数的一致吗??

不要。从来就只要主语和谓语数一致。