You're just a kid. You sure do know your kung fu.
6 seconds sound clip from the Sleeping Fist (1979) movie soundboard.
You can hear this line at 01:04:14 in the DVD version of the movie.
Quote context
[...]
- You should be ashamed. Whoever taught you kung fu sure is a lousy master. You are a disgrace.
- Master, they've been making trouble.
- You're just a kid. You sure do know your kung fu.
- You're good. Perhaps you can tell me who your master is.
- Hmm, right. I'm Xi Ching, and I challenge you.
- You? Not good enough. Why not challenge my student instead? You're about the same.
[...]