短文改错（共10小题 ；每小题1.5分, 满分15分 ）此题要求改正所给短文的错误。对标有题号的每一行做出判断：如无错误，在该行右边横线上画一个（√）；如有错误（每行只有一个错误）

短文改错（共10小题 ；每小题1.5分, 满分15分 ）
此题要求改正所给短文的错误。对标有题号的每一行做出判断：如无错误，在该行右边横线上画一个（√）；如有错误（每行只有一个错误），则按下列情况改正：
该行多一个词 ：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。该行缺一个词：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。该行错一个词：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正。
Dear Editor,
Recently, my classmates have had a heated discussion about that
【小题1】
we should have optional courses(选修课) in high schools. Some students were 【小题2】
in favor of the optional courses. They say interest is the best teacher 【小题3】
and our spare time will be colorful and meaningful. Students
【小题4】
can not only enlarge their knowledges but also improve their abilities 【小题5】
However, others are against the idea, said that optional courses 【小题6】
will take up too much time as well as energy. In addition to, some optional
【小题7】
courses have something to do with the College Entrance Examination. They 【小题8】
are afraid they’ll fall behind their classmates if they will take the optional 【小题9】
courses. I’d like to take one or two of the optional courses, which, I think,
will certain benefit me a lot.
【小题10】

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