【题目】He believed that these creatures are linked to a common ancestor. that lived in Asia some 300,000 years ago.
A. that B. the one
C. one D. those
在线课程【答案】C
【解析】考查替代。句意：他相信这些生物与一个共同的祖先联系在一起，大约三十万年前住在亚洲的一种动物。此处one代替a common ancestor，是同位语，one后面是that引导的同位语从句，故选C。