All the cloned animals have so far suffered from some serious disorders, many of

题型：不详难度：来源：

All the cloned animals have so far suffered from some serious disorders, many of        dying soon after birth．

A．that

B．whom

C．which

D．them ．

答案

D

解析

试题分析：句意：到现在为止所有的克隆的动物有有一些严重的疾病，很多出生后不久就死了。这里逗号后面的动词dying不是谓语动词，而是非谓语，所以判断是独立主格结构，用逻辑主语+非谓语动词，用them代替the cloned animals选D。