我在做家庭作业，忘记了时间。
昨天晚上9点到10点我在做家庭作业。
我只是在做我的家庭作业。
他们在做家庭作业的时候，我正在洗衣服。
While they were doing their homework, I was doing the laundry.
我帮助我的朋友们解决困难，当他们在做家庭作业遇到困难时。他们知道我懂得多，但并没有因此而孤立我，也没有把它当作很了不起的一件事。
I help my friends with their homework and they know I've got special skills, but they don't alienate me or make a big deal out of it.
当他在做家庭作业时，我走了进来。
今天晚上，我女儿在做完家庭作业之后花了一些时间练习了吹长笛。
My daughter spent some time in playing the flute when she finished her homework this evening.
我女儿早上一直在做家庭作业。
在做完了家庭作业之后，我喝了一杯出去了。
Having finished all my homework, I had a drink and went out.
昨天晚上当我父亲在看报纸时，我正在做家庭作业，。
I was doing my homework while my father was reading a newspaper last night.
昨天爸爸回家的时候，我正在做家庭作业。
I was doing my homework when my father came back home yesterday.
那时我正在做家庭作业。
今天晚上，我女儿在做完家庭作业之后开始学习第一百四十三课的新单词了。
My daughter stared to learn the new words in lesson 143 when she finished her homework this evening.
她问我那时我是否在做家庭作业。
今天晚上，我女儿在做完家庭作业之后，背诵了第一百一十一课的三分之二的对话。
My daughter recited two thirds of the conversation in lesson 111 after finishing her homework this evening.
今天晚上，我女儿在做完家庭作业之后复习了第七十二课。
My daughter reviewed lesson 72 after finishing her homework this evening.
上个星期天晚上九点我正在做家庭作业。
上个星期天晚上九点我正在做家庭作业。
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