改错（10分）
文中共有10处语言错误。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加上一个漏字符号（∧），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均仅限一词。
2. 只允许修改10处，多者（从第11处起）不记分。
Of all my teachers, Mr. Brown is the one who impresses me mostly. Mr. Brown teaches us physics. Though he is in late forties, he looks very young for his age. And he is one of the most popular teachers in our school. Comparing with other teachers, he pays much attention to his way of teaching. He tries various ways make his classes lively and interesting. In his opinion, we should not only know “what”, but also understand “why”. So, instead of giving us answers immediately, he encourages us to think of ourselves whenever he puts forward some questions. Under his help, we’ve learned how to analyze and settle physical problems. How a wonderful world of “why” he leads us to! He is so inspiring a teacher that we all admire.mostly——most
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(答案→)mostly——most
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