问题描述：
短文改错,需要友友的帮助,财富给最快回答的朋友.
On the other hand,teachers could certainly be able to make their students feel that they are concerning.②：a good knowledge of the subject is extremely important.③：but equal important is the ability to pass that knowledge on to the students effectively— a teacher need to be trained in the skill of teaching.改错,
On the other hand,teachers could certainly be able to make their students feel that they are concerning.②：a good knowledge of the subject is extremely important.③：but equal important is the ability to pass that knowledge on to the students effectively— a teacher need to be trained in the skill of teaching.改错,
问题解答：
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