Me, you, him, her, it, us, them
The statement "the first clue that something had changed after Rip wakes up is that his dog wolf is licking his face" is False. In fact, when he woke up his dog, Wolf was nowhere to be found. Rip Van Winkle just noticed that his beard has grown foot long and his musket was rusty and rotting.
On is the only preposition in this sentence. A preposition shows location, such as, on, over, beside, etc.
Answer:
an expression that indicates the scope of a term to which it is attached.