求各位NN解释OG上一道题~~

JIANGKLOP

84. One legacy of Madison Avenue's recent campaignto appeal to people fifty years old and over is the realization that as aperson ages. their concerns change as well.

(A)  the realization thatas a person ages, their

(B)   the realization thatas people age, their

(C)  to realize that when aperson ages, his or her

(D)  torealize that when people age, their

(E)  realizing that as people age, their

主要是不知道为什么不能用不定式，OG上说用了不定式句子不完整
ChoicesC, D, and E can be faulted for failing to complete the construction Onelegacy ... is with a noun that matches the noun legacy; thesechoices use verb forms--the infinitive to realize or the presentparticiple realizing--in place of a noun such as realization.

不太理解，跪求解释！~~~

kiwifoodtown

OG的解释再清楚不过了，这里系动词 is 后面必须是个名词以便和One legacy对等，而C,D,E三个选项都是动词的形态，所以不能选。

摇曳的叶子

One legacy of Madison Avenue's recent campaign to appeal to people fifty years old and over is the realization that as people age, their concerns change as well.
linking verb两边要parallel！

enkyklios

我也觉得这里OG说的挺清楚