[求助] [问题] 1道OG语法题不懂!

fernandochang

请帮忙!谢谢!

243.Some scientists have been critical of the laboratory tests conducted by the Federal Drug Administration on the grounds that the amounts of suspected carcinogens fed to animals far exceeds those that humans could consume.
(A) far exceeds those that humans could consume
(B) exceeds by far those humans can consume
(C) far exceeds those humans are able to consume
(D) exceed by far those able to be consumed by humans
(E) far exceed those that humans could consume

donna

根据主谓语一致，可以排除ABC，因为从句的主语是amounts 复数，谓语动词应该用exceed
D中able to be consumed 只能用主动，不可用被动，还有情态动词COULD不可随意省略。
所以选E

tony9721

in addition, 主动优先,be able to 表示有能力,can>be able to