此题要求你对一段文章改错。先对每一行作出判断是对还是错。如果是对的，在该行右边横线上画一个勾（√）；如果有错误（每行不会多于一个错误），则按情况改错如下：
此行多一个词，把多余的词用斜线（＼）划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
John was a very famous pianist. When he was a small boy,
he once played at a party at home of a rich man.                    . ______
He was only eight years old. And he had played the                 . ______
piano from several years. At the party, he played a                    .. ______
famous piece by Beethoven. He played wonderful.                  . ______
The famous piece had several very long rests. In                      .. ______
every of these rests he took his hands from the piano                    . ______
and waited. To him this was much more excited. But it                .. ______
seemed as if the mother of the rich man thought                       . ______
differently. Finally, during one of these rests she went            .______
over towards him. She touched him on his head with a                   .. ______
smile and said, “My boy, why don’t you play what you know well?”