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.

Okay, fine. The Tar Pits. Let's go.
The Big Bang Theory Season 3, Episode 6

To the TAR pits!
The Big Bang Theory Season 7, Episode 3

I do enjoy the La Brea Tar Pits.
The Big Bang Theory Season 3, Episode 6

...and my new dandruff shampoo
doesn't smell like TAR.
The Big Bang Theory Season 6, Episode 6