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7．

"Are you OK？""Yes，I am OK．"You may hear this kind of talk around you．"OK"is most（81）widely （wide）used around the world．Where did"OK"come from？Let's take a look!
"OK"was first （82）written（write）in the Boston Morning Post on March 23，1839．It read：o．k．-oll correct （all correct）．It was only a joke at that time．But later"OK"（83）became（become） popular．People used it （84）to say （say） that all was well．
Today we use this （85）expression（express） many times a day．

分析 "你好嗎？""是的，我很好．"你或許聽過在你周圍有這種談話．"OK"被全世界廣泛地使用．"OK"來自哪里呢？讓我們看看！
"OK"第一次被寫在1839年3月23日的波士頓早報上．它說：o．k．是oll correct（全對）的縮寫．在那時只是個玩笑．但后來"OK"成為了流行．人們用它來說一切都好．
如今我們一天用這個表達好多次．

解答 81．widely．副詞考查．空格處是用來修飾use，故用副詞widely，故答案是widely．
82．written．被動語態考查．主語OK是動詞write的承受者，結合時態用一般過去時的被動語態was/were+過去分詞，write的過去分詞是written，故答案是written．
83．became．動詞考查，根據It was only a joke at that time可知，此處應用一般過去時態，become的過去式became，故答案是became．
84．to say．非謂語動詞．聯系漢語意思可知，此處use to do sth 意為用來做什么，故填寫to say．
85．expression．this后加名詞單數，express的名詞是expression，故答案是expression．

點評此題考查短文填空．做題時，要先領會全篇含義，再根據細節，注意判斷所用形式．注意時態、人稱以及動詞用法等等．

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