Hello HemR, There is no such thing as best English. There is rather American and British English with different pronunciation of certain words. British use 'organisation' as well as the commonly used 'organization' in America.'Color' is American English ,while 'colour' is British. There are some words that are written differently as Slang. The word 'socks' is written sometimes informally 'sox' ,it is like how retards spell 'socks' .

Hi, should you want to learn British English, the answers are very simple: colour socks organization, or organisation reference: www.askoxford.com