看下这篇文章到底有多少语法错误

题目

看下这篇文章到底有多少语法错误
We have interviewed the paint processing plant last week.After we finished the survey,I asked the sales manger for an opportunity to do the interview.A few minutes later he told us that we could have a chance to do the interview by the CEO himself.So we was very elated and excited.
But the things don't always turn out as we have planned.At first the CEO asked about our college,when he noted that we just learned about the international business communication and other basic marketing and other business course.He was no longer talk about the interview and the job he offered.But how could we accept this result?It is a long distance for us to came here,we couldn't just left it at that!Although we have told him what we need was just a process or an answer.But he still didn't say any words about the interview instead chatted about everyday matters.In our repeated insistence.In order to give usan out,he said:“Maybe I will hire an interpreter in the future,but ringht now we just need the man who has paint manufacturing expertise or trained in professional schools."
At last we didn't get any result of the interview.After the sales manger set us back he said:"welcome to work in our factory all the time!" I believe that just out of politeness.Because in China we must say that to keep the relationship!And this is the best answer in my first interview.
你确定么？还有错误啊

答案

We interviewed the paint processing plant last week.After we finished the survey,I asked the sales manager for an opportunity to do the interview.A few minutes later he told us that we could have a chance to do the interview by the CEO himself.So we were very elated and excited.
But the things didn't always turn out as we had planned.At first the CEO asked about our college,when he noted that we just learned about the international business communication and other basic marketing and other business course.He was no longer talking about the interview and the job he offered.But how could we accept this result?It was a long distance for us to come here,we couldn't just leave it at that!Although we have told him what we need was just a process or an answer.But he still didn't say any words about the interview instead chatted about everyday matters.Because of our repeated insistence,and in order to give us out,he said,“ Maybe I will hire an interpreter in the future,but right now we just need a man who has painted manufacturing expertise or trained in professional schools."
At last we didn't get any results of the interview.After the sales manager set us back he said,"Welcome to work in our factory all the time!" I believe that just out of politeness.Because in China we must say that to keep the relationship!And this is the best answer in my first interview.
这个呢?