GWD-24-Q21

A.    and the sub-languages or dialects within it, but those who have
            tried to count typically have found

B.    and the sub-languages or dialects within them, with those who
            have tried counting typically finding

C.    and the sub-languages or dialects within it, but those who have
            tried counting it typically find

D.    or the sub-languages or dialects within them, but those who tried
            to count them typically found

E.     or the sub-languages or dialects within them, with those who have
            tried to count typically finding

Ans: A , but what's wrong with C ? I prefer "find" to "have found"

try doing 用法时 try不是表示试图,而是表示实验/使用之意. 详情请查字典

另外对于同一个意思的表达,动词表达的选项永远优于用分词/动名词的表达的选项,因为其更加简洁,

具体的顺序如下

实意名词>动词>形容词>抽象名词>分词动名词>从句

个人认为，try to do 和 try doing 都对。

但是C中，try counting it。 it 只能指代前文中的a language.

意思上就不对，哪些数一种语言的人发现有5000种。

try doing用法时, try释义为 test

e.g. "My plant is dying""Have you tried putting it in a sunnier room?" (朗文高阶例句)

当试图/尝试讲是用try to do, 而且这也是GMAT中最常见的用法

此外,C中的代词it非常不妥,即使换成them也指代不明,应换为 languages

解释得很清晰，非常感谢！