增加：在缺词处加一个漏字符号
（∧），并在其下面写出该加的词。
删除：把多余的词用斜线
（＼）划掉。
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者
（从第11处起）不计分。
Today, carnival in Venice is celebrating for five days in February. People arrive from all over Europe enjoy its fun. Hotels are full booked and the narrow streets are crowded with wonderful costumes. German, French and English seem to be the main language. But the spirit of Venice carnival is not quite the same like the great American carnivals. If the key to Rio are music and movement, then in the Venice it is the mystery of masks. As you wander through the streets, you saw thousands of masks, but you have no idea that the faces behind them look like. Nobody takes it off. If the masks come off, the magic is lost.
