I had no choice but to review part of my previous lecture for the benefit of those who had been absent from some classes.为了那些缺席了若干功课的学生的利益,我除了回顾部分早些时候的讲稿（即为缺席学生重新讲解）外别无选择.
for the benefit of （为...的利益）符合题意；
on purpose 故意
in return for 作为...的报答
on the purpose of [无此词组]