求教版主、牛牛OG13-81（OG12-Q78）选项疑惑~~~~~~~~~~

Gloriafighting

Fossils of the arm of a sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.

A. sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of
B. sloth, that they found in Puerto Rico in 1991, has been dated at 34 million years old, thus making it the earliest mammal known on
C. sloth that was found in Puerto Rico in 1991, was dated at 34 million years old, making this the earliest known mammal of
D. sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on
E. sloth which, found in Puerto Rico in 1991, was dated at 34 million years old, made the sloth the earliest known mammal of

求教各位大神，NN，版主们~~~~

几个选项最后的mammal on the island 和mammal of the island有区别麽？我觉得两个长得不一样肯定是有个谁对谁错的，或者意思不同什么的！
查了老帖子发现没人问过这个点，OG后面题目解释和选项分析都没有提到这点！


真心感谢！！！

DUKB24

见此表格OG总结的78题

有问题可以继续提出

Gloriafighting

谢谢亲的神速回答！！！我下载了你的excel可是里面没有回答on/of的问题呀？

Gloriafighting

P.S.:笔记做的真好啊~~

DUKB24

sorry，没看见你的问题

这里明显是要用on，表示在这片土地上


when you use of，the subject should actually possess such stuff


a pen of Mike  （that‘s fine；because Mike owns the pen）


a sloth of the land （bad；because the land does not own the sloth）

Gloriafighting

哦哦~好像是哦~~~谢谢Dukb的回答~