仔细阅读下列句子，每句中均有一个错误，请找出并在横线上改正，请按下列情况改正：该句多一个词：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。该句缺一个词：

仔细阅读下列句子，每句中均有一个错误，请找出并在横线上改正，请按下列情况改正：
该句多一个词：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。
该句缺一个词：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。
该句错一个词：把错的词下划一横线，在该行右边横线上写出改正后的词。
A day, I came across an old friend in a museum.           【小题1】    
My friend was in his sixties. Therefore, he looked so          【小题2】    
young. I asked him how he stayed young.                【小题3】                
He told me take exercise was a good way                【小题4】    
to keep health, such as, having a walk.                    【小题5】    
His office was 2 miles far away from his home .Every day       【小题6】    
he went to work on foot instead taking a bus. He               【小题7】    
also gave me some other suggestion to be in good               【小题8】    
health. He thought how fun it was to do sports.            【小题9】    
Heard what he said, I decided to take action.                                      【小题10】    A day改为one day