In the text below some words are missing. Drag words from the box below to the appropriate place in the text. To undo an answer choice, drag the word back to the box below the text.
下面的文本缺了一些词。请把词框里的词拖到文中合适的位置；要撤销选择，把词拖回文本下方的词框即可。
Because instructional methods, expected class participation and the nature of the courses vary, no fixed number of absences is applicable to all . Each is responsible for making clear to the class at the beginning of the his or her policies and procedures in regard to class and the reasons for them.
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我的练习记录
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