it is easy for me to( )which pen is mine.选择：tell say speak talk为什么

it is easy for me to( )which pen is mine.选择：tell say speak talk为什么
it is easy for me to( )which pen is mine.
选择：tell say speak talk
为什么

it is easy for me to( )which pen is mine.选择：tell say speak talk为什么
tell 有识别,辨别的意思.

certificate
证明钢笔是我的是很容易的事情

find out
recognize
tell，查字典，有辨别、区别的意思

certificate

say

find.

我看看哈，有个短语叫做tell the difference，就是辨认不同的意思；但是在这道题上我觉得该选say，这是从语感上来说嘛，读say带进去的话句子会显得通顺；
如果这位童鞋你还是不确定的话，那不妨去问问老师吧O(∩_∩)O~