此题要求改正所给短文中的错误．对标题号的每一行做出判断：如无错误，在该行右边的横线上划（√）；如有错误（每行只有一个错误），则按下列情况改正：
此行多一个词：把多余的词用斜线划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号（^），在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
This corner was set up three years before．Every Sunday 66．
morning, we gather around here, but many college students 67． '
and some foreigner often join us．We practise spoken English 68．
by talking about everything we are interested．We also exchange 69．
our experience in English study．We all had a good time here． 70．
Thousands of people have been here since it was set up．We think 71．
that we have learned a lot of by taking part in activities here．It is 72．
a real supplement to our English class and it welcomed by students, 73．
their parents and teachers．They all think it is helpfully．If you want 74．
to know much about the corner, you may talk to the students here． 75．
