两个都有“很简单”的意思：
如：
"This task is so easy"
这个任务太简单了～
"This task is very easy"
这个任务很简单～
所以如果你只想简单的表达，某某事情很简单，那就用 very easy. 如果你想强调，某某事情太简单了，那你就用 so easy.
～·～·～·～·～·～·
问题补充：
如果想要说，考试结束了，感觉很简单，那就直接用 Very easy～ 或 Pretty easy
"The test is finished. It was pretty easy."
"The test is finished. It was very easy."
如果觉得考试特别特别简单，那就用 so. The test was so easy! 强调考试太简单了。
o(∩_∩)o
