About XDF885-177

nina23

177.    Believed to originate from a small area on their foreheads, elephants emit low-frequency sounds that may be used as a secret language to communicate with other members of the herd.
(A) Believed to originate from a small area on their foreheads, elephants emit low-frequency sounds that may be used
(B) Elephants emit low-frequency sounds that are believed to originate from a small area on their foreheads, and they may use this
(C) Elephants emit low-frequency sounds, believed to originate from a small area on their foreheads, that they may use
(D) Originating, it is believed, from a small area on their foreheads; elephants emit low-frequency sounds they may use  
(E) Originating, it is believed, from a small area on their foreheads, low-frequency sounds are emitted by elephants that may be used


My question is : is there any other good explainations other than E use the passive?
I think E is better than C(correct answer).

[此贴子已经被作者于2003-10-3 23:18:40编辑过]

kathy72

in E, that clause modifies elephants, constructing an illogical meaning that elephants may be used as a language.

nina23

thanks alot.