答案解析：
C
整段对话是说：Joey 的父亲的女朋友打算离开，不想错过最后一班火车，而 Joey 的父亲则提出要去旅馆，但是 Joey 不允许，因此决定让他们呆在自己的地方，并且得听他的。只有 C 是正确的描述。

听力原文：

Ronni: Look, I uh, I shouldn'ta come. I-I'd better get going, I don't wanna miss the last train.
Mr. Tribbiani: I don't want you taking that thing.
Ronni: Oh, where'm I gonna stay, here?
Joey: Who-ah-ho.
Mr. Tribbiani: We'll go to a hotel.
Ronni: (Shrugs) We'll go to a hotel.
Joey: No you won't.
Ronni: No we won't.
Joey: If you go to a hotel you'll be...doing stuff. I want you right here where I can keep an eye on you.
Mr. Tribbiani: You're gonna keep an eye on us?
Joey: That's right, mister, and I don't care how old you are, as long as you're under my roof you're gonna live by my rules. And that means no sleeping with your girlfriend.

听力笔记：

as long as you're under my roof you're gonna live by my rules：我的地盘听我的，这句话很地道哦~