Usually，you don't find the same words in different languages.But there is an exception for the word "OK"!
    The word OK first appeared in the -Boston Morning Post on March 23，1839.It was an abbreviation of the please " oll Korrect "，an incorrect （1）s

pelling

pelling

of " all correct ".Although it began as a joke，people（2）l

ater

ater

used the phrase on documents（文件） or through telegraphs（電報） to say that all was well.
    This year，OK celebrated its 181st （3）b

irthday

irthday

we use this expression countless times every day." How about two o' clock？OK？""OK then." The word OK is （4）e

asy

asy

to say，write and understand.
    Besides，it is more neutral（中立的） than many words .Allen Metcalf，American author of OK：The Improbable story of America's Greatest Word，told The Times，"What OK provided that other words did not was neutrality，a way to express agreement （5）w

ithout

ithout

having to offer an opinion." For example，if someone asks you to go for a walk after lunch，you can （6）s

imply

imply

answer "OK".There you go — no extra opinions.
    OK can be spelled in different ways：okay or O.K.jye.ai they are all pronounced the （7）s

ame

ame

.But "OK" is the most widely accepted spelling and is often used in writing.Some people，however，like the spelling "okay"（8）b

ecause

ecause

it looks more like a word.
    Sometimes，people also say short forms of OK like "K".For example，someone might say，"I'm just going to the supermarket，but I'll be （9）b

ack

ack

in 10 minutes." You could reply with "K".
    OK is so useful that it's said worldwide.You may not know the（10）l

anguage

anguage

of someone you're talking with，but saying "OK" with gestures（手勢） can help you communicate.