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.

involve so much SCIENCE,
I'd have proposed years ago.
The Big Bang Theory Season 11, Episode 12

♪ Math, Science, History
The Big Bang Theory Season 12, Episode 23

You know,
because you're so into SCIENCE.
The Big Bang Theory Season 2, Episode 11

♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 12, Episode 12

♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 1