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.

and hit me over the head with
the biggest BOOK he could find.
The Big Bang Theory Season 7, Episode 20

You're thinking,
"The comic BOOK store on a Thursday?
The Big Bang Theory Season 2, Episode 20

and took out a BOOK on biology
to see what whores did.
The Big Bang Theory Season 7, Episode 22

Oh, I won't be a moment.
I just need to grab a BOOK
The Big Bang Theory Season 12, Episode 15

A BOOK every king should read.
Game of Thrones Season 4, Episode 2