增加：在缺词处加一个漏词符号 ^，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．每处错误及修改均仅限一词;
With the development of science and technology, intelligent robots will be wide used in the future. In families, robots will help people do some housework and taking care of the elderly, babies and patients. In addition to these task, robots will even be able to play the chess and do exercise with people. In factories, robots will be used to perform some dangerous jobs avoid accidents.
Robots will change our future life by many ways, that will make it more colorful and comfortable. Therefore, we shouldn't depend on intelligent robots too much, for they were made to help humans rather than replace us. As helpers of humans, robots should be used proper.
