根据首字母填空缺的单词

根据首字母填空缺的单词
If they are going to read,why not g____ out copies of the lecture?Then we wouldn’t need to go to class.Professors should a____ repeating in lectures material that is in the text-book.“o____ we’ve read the material,we want to d____ it or hear it elaborated on,n____ repeated.” “A lot of students hate to buy a r____ text that the professor has written o____ to have his lectures repeat it.”