短文改错.只许改10处.Today I attended in the English Corner had held

更正在括号处标明,总共十处错误,保证答案准确率!
Today I attended (去掉in) the English corner.It was the first time that an English corner had (加入been) held in our school.Many teachers,(included改成including) some English teachers,went there.The students' union even invited Mr.Smith,(a改成an) honored guest,to the English corner.He (introduces改成introduced) some western customs and also encouraged us (student改成students) to learn to speak English freely.But when I had a chance to talk.I felt a bit (nervously改成nervous) and was at a loss (how改成what) to say.It took me some time to get used to (speak改成speaking) fluent English.I was determined to take part in (so改成such) wonderful activities as often as possible.