Pretty Little Liars Season 4, Episode 17 Spoilers: 6 Things We Learn From the Canadian Promo

Now that we've seen Ali in action, we have more questions than ever headed into Pretty Little Liars Season 4, Episode 17 ("Bite Your Tongue"). Fortunately the Canadian promo gives us a lot of info about what we can expect when we tune in next Tuesday, January 28, 2014. We've taken a close look at the promo to see what information we can squeeze out of it. 1. Hanna was treated by "A" at the dentist. The promo opens with Hanna telling the other Liars that she went to the dentist, and ended up...


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