Exercise Change (Gadri 2)

[emorchy]

I noticed the exercises for Gadri 2 ask for the name of a descriptor fitting a certain category, but I am having difficulty understanding how this betters learning. While it is important to differentiate gadri, I believe the use of "choose the appropriate gadri in this sentence" and "translate using gadri" exercises would be highly beneficial. I will unofficially "self-assign" this issue, and I will submit a pull request once I create the exercises.