GWD31-Q13 没有讨论过

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

B.         nevertheless creating sounds: they produce a complicated system of whistles, squeaks, moans, trills, and clicks with

C.        but they do create sounds, producing a complicated system of whistles, squeaks, moans, trills, and clicks with  

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

E.         but
                nevertheless
            creating sounds: a complicated system of whistles, squeaks, moans, trills, and

        clicks produced by nevertheless 

这题b为什么不对,有人说是分号后不加句子,可是我查了资料,可以加句子

给的答案是c,我觉得theydo的强调语气在原文中是没有的,突然加上感觉不对

还有人选e,个人认为but后面不能接动名词,要接完整的句子

请大家讨论一下,谢谢

C,

but后面不跟分词，那么nevertheless为什么可以呢？

啊!糊涂了,当时做题的时候想到when可以接动名词,省略主语,以为nevertheless 也可以这样用

后来查了字典发现when有介词的用法,是不是因为when可以做介词,所以就可以直接加v+ing呢?

请nn回答

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