Oh ok! The theme of this is to not take your friends for granted.
Answer:
Question 2
Sleep might be an important tool to keep people healthy. is correct
Villain is the answer I believe
Answer:
maybe not completely, but you probably know their name if you asked :/
<em>What I'm saying is that you know a part of them, but you don't know the other side of the story :)</em>
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<em>Hope this helps :]</em>