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．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

Question

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．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：在错的词下面划一横线，并在该词下面写出修改后的词．
注意：1．每处错误及修改均仅限一词；
2．只允许修改10处，多者（从11处起）不计分；
   3．错误类型不涉及单词拼写．
It is interested to visit another country，but sometimes there are some problem when we don't know the language very well．It may be difficult to communicate about the people there．We may not know how to use the telephone in the country where we are visiting．We must not know where to buy the things we need．In a strange country we may not know which to go to eat or what to order in a restaurant．It is not easy to decide how many money to tip（付小费）waiters or taxi drivers．When we are helpless，we may not know what to ask for help．After a short time later，however，we learn what to do and what to say．We learn to enjoy life in another country，and then we may be sorry leave both the place and people．

Answer 1

It is interested to visit another country，but sometimes there are some problem when we don't know 
      interested                                                                                   problems
the language very well．It may be difficult to communicate about the people there．We may not know
                                                                                       with
 how to use the telephone in the country where we are visiting．We must not know where to buy the things
                                                           that/which                       may
 we need．In a strange country we may not know which to go to eat or what to order in a restaurant．
                                                                        where
It is not easy to decide how many    money to tip（付小费）waiters or taxi drivers．When we are helpless，
                                        much
we may not know what to ask for help．After a short time later，however，we learn what to do and
                         how                                                      去掉
 what to say．We learn to enjoy life in another country，and then we may be sorry∧leave both the place and people．
                                                                                                                         to
1．interested-interesting  考查形容词．以ed结尾的形容词表示"人…的"，修饰人；：以ing结尾的形容词表示"令人…的"，修饰物，故把interested改为interesting．
2．questions-problems  考查名词单复数．problem是可数名词，前面有some修饰，所以用复数形式．
3．about-with  考查介词搭配．communicate with sb是固定短语．
4．where-which或that．考查定语从句．从句中谓语动词visit缺少宾语．所以用关系代词．
5．must-may 考查情态动词． 句意为，我们可能不知道在哪里买需要的东西．
6．which-where 考查疑问词．句意为：在一个陌生的国家，我们也许不知道去哪里吃饭．
7．many-much  考查形容词．money是不可数名词，所以用much．
8．what-how，考查疑问词．当我们无助的时候，我们可能不知道怎么寻求帮助．所以用how．
9．去掉later  考查短语搭配．a short time 前面有after，后面不需加later．如果没有after，后面可以用later．
10．sorry后加to，考查不定式．be+形容词+to do是固定句式．