I was in charge of grading all the problem sets that were assigned as homework.
问题描述：
I was in charge of grading all the problem sets that were assigned as homework.
答
我曾负责将所有被分配作家庭作业问题分成各个等级
答
我是在负责分级所有的问题集，被指派为功课
答
我以前负责给作业里的那些问题打分
答
我的家庭作业是负责把所有问题的等级设置下
答
我当时就负责把那些被指定为作业的问题设备分分等级.
be in charge of 负责
grade sth.为某东西分等级
断句：
i was in charge of grading/ all the problem sets (that were assigned as homework--定语)
答
我正在负责那些被安排为家庭作业的问题的打分工作
答
我当时在将所有布置的家庭作业分类归组