the amounts of 后面用单数还是复数？

165.
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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

请问这题为什么选E而不是A?

“exceed those” 比those还要多，那肯定不是单数。要不不就是“exceeds that”了，呵呵。

hehe，敝人愚见，还请NN指点。

根据白勇语法 由于主语为amounts of sth 所以谓语动词为复数！所以排除A B C 另外those able to， those指代amounts， 所以amounts able to， 不符合逻辑 所以E，

另外 即使amounts的主谓一致是随后的 那么carsinogens也是复数 也应该用复数谓语动词