短文改错 (共10小题；每小题1分，满分10分)
下面短文中共有10处错误，错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词。
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；
只允许修改10处，多者（从第11处起）不计分
The way of communication in people’s life have changed a lot of in recent years. In the past, people keep in touch with each other mainly by writing letters or use the public telephone. But now almost everyone has a mobile phone. People could communicate with each other almost at any place and at any time. What’s more, people have easy access the Internet, it enables them to send and receive e-mails whenever they like. With these changes, people’s pace of life has been quickened and people’s work has been made more efficiently. It used to take them several days to hear from each other, and now it takes only several minutes, even if we are in two different continents．