动名词并列，谓语是要用第三人陈单数？

RedXmas

最近做了OG18的新题，发现与之前矛盾的一个点
这是OG12-82
According to a recent poll, owning and living in a freestanding house on its own land is still a goal of a majority of young adults, like that of earlier generations.
(A) like that of earlier generations
(B) as that for earlier generations
(C) just as earlier generations did
(D) as have earlier generations
(E) as it was of earlier generations

正确选项是E,可以得出owning and living是被当做整体而作单数的，当然之前也有its这个词作为指示

然后这是OG18的新题
Cost cutting and restructuring has allowed the manufacturing company to lower its projected losses for the second quarter, and they are forecasting a profit before the end of the year.
（A）has allowed the manufacturing company to lower its projected losses for the second quarter, and they are forecasting
（B）has allowed for the manufacturing company to lower its projected losses in the second quarter and to forecast
（C）have allowed that the manufacturing company can lower the projected losses for the second quarter, and to forecast
（D）have allowed the manufacturing company to lower its projected second-quarter losses and to forecast
（E）have allowed for the manufacturing company to lower the projected losses in the second quarter, as well as forecasting

这题选D，虽然D的确更符合语义，同时并列也更加准确，可是却在谓语动词上选择复数形式。所以一旦出现这种情况的话，谓语到底要选择哪一种形式呢？

wammbb2017

这个很不好讲，但是我认为出现这种情况句子未划线部分会有暗示，或者选项之间会有比较，不必太担心