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。
My father is an engineer. Although he is in Africa most time of the year and there isn't much time for him to be with the family, but we are all proud in him. He builds railways there. It's important part of the great Belt and Road project. At first people there found the Chinese and their work strangely. My father often saw people running after trains out of curious. People there even didn't understand that the Chinese people work very hard. Now, however, the African people have seen the benefits bringing by the railways and they are willing to make friends with the Chinese here. My father had already made some African friends and one of them is planning to come to visit us. We are looking forward to show our African guest around our city.
