题目内容：

英语改错题
last summer i go to america and studied at a langguage went
school.i had many wonderful experience,but i also much
had a sad one.one day ,the school help party,where 加 a
i invited to talk about yunnan.after that they asked me a lot of
things about china.but i could't explain them with english
clearly.i felt sadly.i learnt a lesson from this experience.i
have already studied english for eight years,i can't use it
very good .i must work hard to improve my spoken english
so that i will not be able to communicate freely with foreigners.
i hope i can be a bridge between china and others countries in the future.