Yes, it does, the sentence should be written like this: Beth, my two year old sister, is very curious, so I have to keep a close eye on her.
Answer:
has been playing, explanation: it's just how it would go correctly toward the original sentence as it can be the best of all the answers :plays wouldn't go good because it would not sound right neither plays, as it is now or will play. AS IN I HOPE THIS HELPS. ah..
