短文改错（共10小题；每小题1分，满分10分）

下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（∧），并在其下面写上该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：1.每处错误及其修改均仅限一词；

2.只允许修改10处，多者（从第11处起）不计分

Wore a pair of worn-out shoe, he wandered in the street. Though hungry, he can not find a penny in his pockets. Unfortunate, he became homeless；everyone in her family had cut off connection with him. Mild songs from nearest house reminded him of his every particular in acting. Up to now, he have starred in more than 80 films, that have entertained many people. He was considered to be an outstanding actor. It was convincing that he would picked out to challenge the Oscar this year. But in now everything has changed.

为什么省煤器前的给水管路上要装逆止阀？为什么省煤器要装再循环管？