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.

It'd give you the right to rule
a REPLICA of England.
The Big Bang Theory Season 5, Episode 5

- Come on, it's a REPLICA.
- Original.
The Big Bang Theory Season 8, Episode 7

It would be a REPLICA
of a movie prop.
The Big Bang Theory Season 5, Episode 5

Anyway, he said this isn't a REPLICA.
The Big Bang Theory Season 3, Episode 17

...by building an exact REPLICA of Jerusalem
in the middle of the Mexican desert.
The Big Bang Theory Season 1, Episode 12