GWD31-13

天蝎座1107

Dolphins lack vocal cords, nevertheless creating sounds: a complicated system of whistles, Squeaks, moans, trills, and clicks are produced by sphincter muscles inside the blowhole.

A.          nevertheless creating sounds: a complicated system of whistles, squeaks, moans, trills, and clicks are produced by主谓一致 a complicated system is produced by

B.          nevertheless creating sounds: they produce a complicated system of whistles, squeaks, moans, trills, and clicks with 这里they指代不清
        还是感觉nevertheless是让步(尽管creating sounds)的意味
        那么全句的重点就变成了Dolphins lack vocal cords但是句子其实想说的是Dolphins能发声
        

C.          but they do create sounds, producing a complicated system of whistles, squeaks, moans, trills, and clicks with重点是but后的内容
            Dolphins lack vocal cords 但是他们却能发声
        然后用producing这个伴随状语来解释阐述
        

D.          but they do create sounds, a complicated system of whistles, squeaks, moans, trills, and clicks being produced少了with或者by

E.          but nevertheless creating sounds: a complicated system of whistles, squeaks, moans, trills, and clicks produced by逗号+but后面最好接句子
        当然but也有做副词的情况
        但不是这里

困惑是produce by和produce with是否有什么区别呢?Longman上没有查到

ryanyong

晕死
C的PRODUCE XXXX with
并不是PRODUCE WITH短语啊

WITH 后面是补语。
相当于独立主格之类的

jackieli007

~~

jackieli007

~~

jlsxmdgd

支持B, 冒号对整个句子解释，they 优先指代Dophins. 主动优于被动，produced by不够直接。
请指正