改错：Yesterday morning I was on my way to work. Suddenly I stopped by a woman on the sidewalk. She asked me if I knew how to get to CASS, that is a local shelter for the homeless. I could tell she was extreme upset, so I told her I'd look it up for her on my smartphones. While waiting, she told me she was losing and didn't have money for the bus. I took out of a 20dollar bill from my purse but handed it to her. Then I accompany her to the nearest bus stop. See the happy smile on her face brightened up my day, either.
答案
【解析】1．I后加was 考查谓语动词以及动词的语态。根据“stopped by a woman”可知，此处是被动语态，句中缺少be动词，主语是I，时间为一般过去式，故在I后面加was。
2．that→which 考查定语从句。that不能引导非限制性定语从句，先行词是CASS，指物，故将that改为which。
3．extreme→extremely 考查副词。副词可以用来修饰形容词，故将extreme改为extremely。
4．smartphones→smartphone 考查名词。此处指“我”的手机，用单数形式。故将smartphones改为smartphone。
5．losing→lost 考查形容词。形容词lost表示“迷路的”。故将losing改为lost。
6．去掉of 考查介词。此处表示“拿出”用“take out”，of多余，故去掉。
7．but→and 考查连词。此处前后表示顺承关系，而非转折，故将but改为and。
8．accompany→accompanied 考查动词的时态。本文的时态为一般过去时，故将accompany改为accompanied。
9．See→Seeing 考查非谓语动词。此处是动名词作主语，故将See改为Seeing。
10．either→too 考查副词。表示肯定的“也”用too而非“either”。故将either改为too。
