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.

Refresh my memory.
Why didn't I just put you in the TRUNK?
The Big Bang Theory Season 4, Episode 2

I keep them in the TRUNK of my car.
The Big Bang Theory Season 2, Episode 16

Which is why I keep an omelet
pan in the TRUNK of my car.
The Big Bang Theory Season 11, Episode 14

Hey, show her the TRUNK.
Show her the TRUNK.
The Big Bang Theory Season 10, Episode 6

I've got some Mr. Data dolls
in the TRUNK of my car.
The Big Bang Theory Season 5, Episode 5