I Visited UK
I know a lot about UK because I've lived there for 3 years.
REMINDERS:
* Study the rules of capitalization especially when writing TITLES.
* UK is an abbreviation of Uniter Kingdom. All abbreviations should be in capital letters.
* The pronoun I, wherever you may use it in a sentence, should always be used in a capital letter.
* To avoid redundancy in your sentence by not using a word twice. You are free to use all forms of speech in your sentences so you can convey your message clearer and quicker too.