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：在错的词下划一横线，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。
On January 5th, students in our school visited Robot World, which we saw a great variety of robot. It was amazed to find those robots could do a great number of things just like real people, include playing chess, playing piano and drawing pictures. What's more, the robots are in different kinds and shapes, which made us enjoyable. In addition, that excited me most was the show given by a group of robots. They danced just as if we were dancers on the stage. By visiting Robot World, I have learned a lot about robots, especial about their functions and shapes. The great human wisdom is so powerful that it makes us to feel more comfortable to live in the world.
