高手进，请教这句话错在何处~

来源：百度知道 编辑：UC知道 时间：2024/05/13 17:58:48
When the students firstly come to school, they are taught different kinds of subjects.

firstly错了,first本身就可以是副词,

当first和firstly作副词用的时侯，如果“用于分开并依次列举所述各点”时，是没有什么区别的，可以替换。e.g. First(ly),I'll mention the advantages,then I'll mention the disadvantages.
但当用于修饰行为动词时，则只能用first.
e.g. I must ask my parents first
When did you first go to the country?

they are taught by

将 are 改为 will be 表示他们将会被授教各种各样的课程