假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处，每个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。
注意：1.每处错误及其修改仅限一词。
2.只允许修改10处，多者（从第11处起）不计分
When I was ten years old, I went to Yangzhou with two American．I became their guide．First, we went to the Shouxi River．They wanted to look around the river by the boat．After buy the tickets, we got into a boat．We went around seeing the beautiful sight．After that, we went shopping．The sellers couldn’t spoke English．Though it was very harder, I tried my best listen to their words carefully and translate the sentences．They bought some little things with their help．Next, we went to a small zoo but took some pictures．When we felt hunger, we went out and had lunch．After lunch, we visited some old house and learned more about Chinese history．American 改成Americans
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(答案→)American 改成Americans
解析：文章介绍我和两个美国人去扬州，给他们做导游的事情。
【小题1】我和两个美国人去扬州。American美国人可数名词 应＋s 改为Americans
【小题2】他们想乘船游览这条河。By boat乘船：去掉the
【小题3】买票后，我们进入了一条船。after是介词+动词的ing形式 buy 改为buying
【小题4】卖家不会说英语。Couldn’t后面接动词原形：spoke改成 speak
【小题5】虽然很难，我还是尽最大努力仔细听他们说话。没有比较含义：harder 改成hard
【小题6】try one’s best to do sth尽力做…，
【小题7】在我的帮助下，他们买了一些小东西。their改成 my
【小题8】接下来，我们去了小动物园拍了一些照片。两句话是并列关系：but 改成and
【小题9】当我们感到饥饿的时候，我们出去吃午饭。Feel后面接形容词：hunger改成hungry
【小题10】我们参观了一些旧房子，了解了一些中国的文化。House是可数名词，some后面用houses