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题目
I was in charge of grading all the problem sets that were assigned as homework.

提问时间:2020-09-03

答案
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)
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