一道SC

答案是A，但是each (one) of +复数名词/代词 的时候， 谓语不是应该是单数么？

When an active tooth in the shark’s jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.

1. When an active tooth in the shark’s jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position.
2. Whenever an active tooth is lost or worn down, many spare teeth lie in seemingly limitless reserve in the shark’s jaws, which are each ready to slide into the appropriate position.
3. Many spare teeth lie in seemingly limitless reserve in the shark’s jaws, each one of which are ready to slide into the appropriate position when an active tooth is lost or worn down.
4. The many spare teeth lying in seemingly limitless reserve in the shark’s jaws, each one of which is ready to slide into the appropriate position whenever an active tooth is lost or worn down.
5. In the shark’s jaws, many spare teeth lie in seemingly limitless reserve, each one ready to slide into the appropriate position whenever an active tooth is lost or worn down.

When an active tooth in the shark’s jaws is lost or worn down, many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position

A怎么有两个独立句子? OG ms 没这个题啊, 大全也没有

有高人指点一下么？是TTGWD里面的，和GWD对不上号。

汗, 看错了

同问

试着答一下,也许是这样

each of + Ns + 定语从句谓语复数 + 谓语部分用单数

其中定语从句的谓语动词是修饰of后名词的所以与复数名词数上保持一致.

再者这里each引导独立主格形式,其中不会出现独立的谓语

我想原句可能是这样many spare teeth lie in seemingly limitless reserve, each of (teeth) which are ready to slide into the appropriate position.,which做定语修饰teeth