T-4-Q39,麻烦高手帮忙看看

这道题B错在什么地方？

E选项中百分数后的单复数应该怎么用？是根据修饰的物体是不是可数来判断的吗？

如果是of five hundred +不可数名词，nearly 99 percent 后是不是就应该加has呢？

Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

1. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

2. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.

3. Vanished are nearly 99percent of the five hundred million different species of living creatures that appeared on Earth.

4. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.

5. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.

http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=83126