百思不得其解一道GMAT GWD SC題...
整個(gè)句子都劃線了.
a.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.
e.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.
each of which明顯要用單數(shù)啊,怎么會選a,而且句子意思when tooth is lost,many spare teeth lie in...感覺好像是牙齒掉了,其它的牙齒才lie in一樣.