20: GWD-18-Q19

New genetic evidence—together with recent studies of elephants’ skeletons, tusks, and other anatomical features—provide compelling support for classifying
            Africa’s forest elephants and its savanna elephants as separate species.

1. provide compelling support for classifying

2. provide compelling support for the classification of

3. provides compelling support to the classification of

4. provides compelling support for classifying

5. provides compelling support to classify

我记得og160里面有题目说到for/ to的区别，for后面表目的最好是名词，而不是动词+ing。当时有的nn局的例子是：

i came to the US for studying. i go to restaurant for dinner.

那位nn能来看看？我还是觉得e比d好。

很有道理啊。。。

那就是说在表示目的，并且动作是逻辑主语发出的时候才用to，不能用for。

 thanks, s7s7!!!!!