prep07的一道关于用词的题目

深高金的zkk

8.The number of plant and animal species that humans are known to have forcedto extinction in the last half millennium is over 800.

(A) humans are known to have forced to extinction

(B)humans are known as having forced to become extinct

(C)humans are known for forcing to become extinct

(D) are known that humans forced to become extinct

(E)are known as having been forced to extinction by humans

D选项的species are known that humans forced to become...能把that理解成指代species，然后引导了宾语从句嘛？species are known that human force (species) to become extinction

总觉得错误不大，但是不知道为什么不去选择

长丝弓

楼主也可以顺便看看相关的帖子：
https://forum.chasedream.com/thread-531041-1-1.html
https://forum.chasedream.com/thread-485562-1-1.html
https://forum.chasedream.com/thread-689922-1-1.html

Blair__Lu

"the number of.." is singular --> "are" is wrong.
https://gmatclub.com/forum/the-number-of-plant-and-animal-species-that-humans-are-known-to-have-27708.html