It could have been a law firm; it could have been working in the study group on a homework assignment.
它可能是一家律师事务所；它可能是学习小组做家庭作业。
They could be playing an online game or chatting with their friends while working on their homework.
他们可能边玩网络游戏边与朋友们聊天当做作业的时候。
They are watching the lectures at home as homework, recorded lectures, and when they get to class, they are having more active discussions, or interactions with the teachers or working on projects.
他们把在家观看录制的课程当做作业，来到教室时，他们会进行更活跃的讨论，或者与教师互动或做项目。
Jane was working on her homework last night.
简昨晚在写作业。
She is supposed to be working on her homework.
她应该做她的家庭作业。
They spend all their free time at home working on lesson plans, grading and making homework and tests, and many other things.
他们花了所有在家的业余时间做课程计划、批作业，和其他事情。
I was working on my project, soI forgot about all my other homework until midnight.
我做设计时把其他作业忘得一干二净，直到半夜才想起来。
My daughter is working on her homework...
女儿写作业时拍的。
They're working on their English homework.
他们正在研究他们的英语作业。
They're working on their English homework.
他们正在研究他们的英语作业。
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