短文改错。
文章共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号（∧），并在其下面写上该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
注意：
1.每处错误及修改词均仅限一词；
2.只允许修改10处，多者（从11处起）不记分。
Dear Smith,
I'm an university student. I once thought life at the university must be excellent, but now I
changed my mind . I have three roommate, and I was the last one to move into the
dormitory. Last term, I got along peacefully and happy. But I find they are not willing to
be with me now. They don't talk with me, and they have become cold toward me. Many
time, I have wanted to talk with them about how I felt like, but I failed to find an opening.
When leaving alone, I always recall this sadness. But I am an honest student. Why don't I
win true friendship?
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