12．文中共有10處語言錯誤，每句中最多有兩處．錯誤僅涉及一個單詞的增加、刪除或修改
增加：在缺詞處加一個漏字符號（
），并在其下面寫出該加的詞．刪除：把多余的詞用（\）劃掉．
修改：在錯的詞下畫一橫線，并在該詞下面寫出修改后的詞．
注意：（1）每處錯誤及其修改均僅限一詞；
（2）只允許修改10處，多者（從第11處起）不計分．
Never shall I forget the writing class presented to our English teacher today．Yesterday Mr．Wang，our English teacher，told us that many other teachers will visit the writing class．We were looking forward to it．It struck us as a big surprise was that Mr．Wang，who was used to be punctual，didn't appear when the school bell rang．The teachers sit behind the class were quite puzzling．We were quite worried about him，wondering what have happened to him．Five minutes late，Mr．Wang showed up in front of us!On the blackboard was the writing titles："When Our English Teacher Was Late for Class．"Only then we realize that he had intended to be late!
