How Can You Label All Of The Crates Correctly?

Question

You work at a fruit factory.
There are 3 crates in front of you.
One crate contains only apples.
One crate contains only oranges.
The other crate contains both apples and oranges.
And each crate is labeled.
One reads "apples", one reads "oranges", and one reads "apples and oranges".
But the labeling machine has gone crazy and is now labeling all boxes incorrectly.
If you can only take out and look at just one of the pieces of fruit from just one of the crates,
How can you label all of the Crates correctly?

Answer 1

From the box with Apples and Oranges. That box will contain whatever fruit you pick. The box that is labeled what you picked is the other fruit. The third box is the mixture.
You pick Apple.
The box Apples and Oranges contains only Apples.
The box Apples contains only Oranges.
The box Oranges contains Apples and Oranges.