I think the point of these weirdly worded exercises is so we can see the words used in many different ways. Every language course I'm in does it, its just getting you used to the words and their cases.
In Arabic "you" inflects when you're talking to a male or a female. The phrase is weird without context, but it tells you how to say "you" to a woman, "Anthi". If you're talking to a man, it's "antha".