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胡了

此题何解啊，给的答案是A。。不解不解
When an active tooth in the shark’s jawsis lost or worn down, many spare teeth lie in seemingly limitless reserve, eachof 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.
   

vinbobo

楼主你的编辑格式太糟糕了。。。东西写不上去啊

vinbobo

这题不能是A，应该是E吧
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 （这里单复数不一致） ready to slide into the appropriate position.意思太奇怪，当牙坏了，鲨鱼才有那些备用牙齿Whenever an active tooth is lost or worn down, many spare teethlie in seemingly limitless reserve in the shark’s jaws, which are each   ready to slide into the appropriate position.意思太奇怪，不管什么时候当牙坏了，鲨鱼才有那些备用牙齿/which指代模糊，这里指代jaws
Many spare teeth lie in seemingly limitless reserve in the shark’s jaws, each one of which are(单复数不一致) ready to slide into the appropriate position when an active tooth is lost or worn down
The many spare teeth lying in seemingly limitless reserve in  the shark’s jaws(不是句子), each one of which （指代模糊，指代jaws）is ready to slide into the appropriate    position whenever an active tooth is lost or worn down. 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.