关于what 引导宾语从句的疑问

Donquioxte

Researchers in Germany have unearthed 40000-year-old wooden spears from what it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who systematically hunted big game much earlier than believed.
A it appears was an ancient lakeshore hunting ground as stunning evidence of human ancestors who
B it appears had been an ancient lakeshore hunting ground and stunning evidence that human ancestors
C appears was an ancient lakeshore hunting ground and is stunning evidence that human ancestors
D appears to be an ancient lakeshore hunting ground, stunning evidence that human ancestors
E appears that it is an ancient lakeshore hunting ground, stunning evidence of human ancestors who本题正确答案是D
这里what 应该引导的是宾语从句，可是宾语从句后面应该跟的是完整的句子但是正确答案里缺了主语。
我想问问这句话改怎么理解？

emmahiggins09

这是曼哈顿 RON 大神的解释：

you should just know that "what VERBs..." plays the role of a noun. it can be inserted in most places where a noun can be used.

e.g.,
A storm is approaching the Atlantic coast.
What appears to be a hurricane is approaching the Atlantic coast.

Jonny donated several thousand dollars to a fake charity.
Jonny donated several thousand dollars to what appeared to be a genuine charity, but was in fact a criminal enterprise.

Donquioxte

emmahiggins09 发表于 2016-9-29 03:30
这是曼哈顿 RON 大神的解释：

you should just know that "what VERBs..." plays the role of a noun. it  ...

万分感谢

leticia.feng

同样感谢?