七点的时候我开始做作业。

I do homework at seven.

youdao

回到家时，我只有几个小时的时间做作业，所以我必须马上开始做。

By the time I got home, I only had a few hours to do my homework, and I had to do it right away.

youdao

有一天当我建议他在晚饭前开始做作业时，约翰这个一贯拖拉的家伙居然说：“您是对的，我想我会做的。”

One day when I suggested that he might start on homework before dinner, John — a veteran procrastinator - said, "You're right. I guess I will."

youdao

I don't do that. Part of this is designed to get you to start thinking about the transition from high school to college.

我不那样做，有些作业是为了,让你们开始思考,高中到大学的转变。

麻省理工公开课 - 固态化学导论课程节选