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。每处错误仅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. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者（从第十一处起）不计分。
I was very exciting when I boarded the flight for Taiwan. The plane flew for about four hours after it landed on the island. On arrival, we were greeted by local guide. We stayed in Taiwan for eight day. During our stay, we went boating in Riyuetan Pool, that is a beautiful lake. We visited Mountain Ali, where we went hiking. We also have a good time in Tailu Pavilion and Kending Park. That impressed us mostly was that the local people were very friendly. Wherever we went, they were given a warm wele. Although our trip was very busy, but it was pleasant. exciting—excited
网友回答
(答案→)exciting—excited
解析：
【小题1】exciting—excited 考查非谓语动词的用法。此处excited表示人的特征，意为：主语“人”对……感到激动；
【小题2】after---before 考查连词的用法。此处根据文章的意思可知，飞行了大约4个小时才降落。所以用before；
【小题3】by后加a 考查冠词的用法。此处guide是可数名词，故用a，表示一个导游；
【小题4】day---days 考查名词的单复数的用法。根据前文的eight可知用复数；
【小题5】that---which 考查非限制性定语从句的关系词。此处引导非限制性定语从句用which；
【小题6】have---had考查动词时态。根据前文的went可知，此处用一般过去时；
【小题7】That----What 考查主语从句的用法。此处what作主语从句的主语；that不作成分；
【小题8】mostly---most 考查副词的用法。Mostly意为：大部分的，most意为：很，表程度；
【小题9】they---we考查代词一致。根据句子的主语可知，此处用we和前文保持一致；
【小题10】去掉but考查状语从句的连词的用法。句中although和but不能连用。故删掉。