此题要求改正所给短文中的错误。对标有题号的每一行做出判断：如无错误，在该行右边横线上画一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：
该行多一个词：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。
该行缺一个词：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。
该行错一个词：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。
Mrs．Brown was an old lady with just one son who lived far                  71．        
away from her. On her 80th birthday, she was sure that even if                       72．        
her daughter could not come for a visit, but she would at least                        73．        
receive a present to her daughter．After all, eighty was a special  74．        
birthday, one should not be forgotten．The old lady waited so                        75．        
eager that she stood at the front door for a whole day．Her                            76．        
daughter didn't show up．However, the old lady got the parcel                       77．        
in which there were a printed card along with a cheque．She                         78．        
felt very disappointed and she tears the cheque into pieces．                           79．        
Everyone but a caring daughter or son could write a cheque．                        80．