下面的短文有十处错误。错误涉及一个单词的增加，删除或修改。
增加：在缺词处加一个漏字符号，并在其下面写出该加的词。
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。
Do you often smile? If not, star smiling now. People who like smiling and often smile not only leave a friendly impression to others, but also changing their own mood. As a result, facing with great pressure from my work, I held the view that we should smile happily. A few days ago, while chatted with one of my friends on the internet, I expressed my dissatisfaction with my job. After learning from this, he sent me his picture with big smile. The pictures changed my bad mood immediately. From the above example, we can know whether we smile to life, life can give me a big reward. to改为on
网友回答
(答案→)to改为on
解析：
【小题1】leave an impression on给……留下印象
【小题2】与前面的leave并列，形式要保持一致。
【小题3】be faced with面对……
【小题4】整篇文章的基本时态是一般现在时。
【小题5】主句主语I是chat的执行者，要用现在分词。
【小题6】learn sth学会……
【小题7】with a smile微笑着
【小题8】结合前一句可知picture应用单数。
【小题9】此处是条件状语从句，不可用weather。
【小题10】me要与前面的we一致，故改成us。