I finished my homework myself.

我独立完成了家庭作业。

I finished my homework two hours ago.

两个小时以前我就完成了作业。

I watched TV after I finished my homework.

在我完成家庭作业后，我看了电视。

I didn't go shopping until i finished my homework today.

我今天直到写完作业才去逛街。

I finished my homework but then I deleted it by accident.

虽然我已经完成了作业,但后来不小心把它删除了.

I finished my homework but then I deleted it by accident。

虽然我已经完成了作业，但后来不小心把它删除了。

Last sunday i didn't go shopping until i finished my homework.

上星期天，我直到写完作业才去逛街。