The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

I'm gonna say 3-D. That'll let her know
the STUDIO has faith in it.
The Big Bang Theory Season 4, Episode 22

and thanked our
STUDIO audience
The Big Bang Theory Season 12, Episode 24

Cheers.
Filmed before a live STUDIO audience.
The Big Bang Theory Season 10, Episode 6

The fun starts with brunch
at Carney's in Studio City...
The Big Bang Theory Season 4, Episode 6

So, when
the live STUDIO audience
The Big Bang Theory Season 12, Episode 24