本月SC一道JJ求讨论，鲨鱼牙齿，到底是A还是E？？

ki87uj

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.
   
   JJ的答案是A，给出了的讨论帖，但是我觉得each of which are 的单复数有问题，并且which的指代也有问题，不可能跳跃指代前面的主语 many spare teeth 啊。。。
   E的后半句可以看成是独立主格结构，虽然长了一点，但是毕竟没有严重问题。
   网上能搜索到的帖子，都在A和E之间争议，没有定论。。。。急啊。。。
   

susliks

ding xia ...

dionwang

A的逻辑性更好

kinozx

在Manhattan forum里，staff们选e啊。。。

this should be (e).

the other four choices all misuse "which" (or "each of which", whose modifier properties are the same as those of "which").
in (a), "each of which" doesn't refer to anything at all (it seems to refer to "reserve", but that doesn't make any sense)
in (b), "which" refers to the shark's jaws (this doesn't make sense)
in (c) and (d), "each one of which" refers to the shark's jaws (this doesn't make sense)

also:
(a) and (b) have the wrong meaning: the placement of the "when"/"whenever" clause suggests that the teeth are only there when another tooth is lost or worn down.
(c) has subject-verb disagreement ("each one of which" is singular, but "are" is plural).
(d) is a sentence fragment.

rubyrain0607

我也觉得应该是E

A的逻辑有问题吧？感觉像是说，只要“an active tooth in the shark’s jaws is lost or worn down”，就会出现这种情况：“many spare teeth lie in seemingly limitless reserve, each of which are ready to slide into the appropriate position”

而E的逻辑是说，本来就是“many spare teeth lie in seemingly limitless reserve”，然后“each one ready to slide into the appropriate position whenever an active tooth is lost or worn down.”

我感觉是这样...

tenby

嗯E
Each是单数。排斥AC。
which are each. wordy, 逻辑也有问题，jar怎么slide了，排除B
The many , awkward. 没有主句谓语。 each one of which, wordy. 排除D

而且E逻辑跟清晰合理。

zuzi

对，each of which 单数排除A，很明显的考点啊。

Heather_Lau

个人意见是E.