CV-7谢谢

kun861010

Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.



A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of

B. sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on

C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of

D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on

 e.sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of

e是正确答案，但是可以有人告诉我这个属于什么句式嘛？sloth which，。。。。。，was dated， made。如果这个可以，为什么c不可以呢？我选的是c。

w3d001

c的was dated差一个链接词，要不不完整啊，还有this的指代问题

zanyingsan

C里面的was dated里的was就很多余啊，这样不就成了一句话里有两个谓语动词了？并且making作为伴随离使得句子重心也改变了，要强调的硬挨是made的内容，
E里面的found in可以看到是一个插入语结构。

chandler大年

答案是D才对啊