What's your brother doing? He's doing his homework.
你弟弟正在干什么？他正在做家庭作业。
Tom goes on doing his homework.
汤姆继续做他的作业。
He is busy doing his homework.
他正忙着做家庭作业。
He is always doing his homework.
他总是做不完他的作业！
He set about doing his homework.
他开始着手做家庭作业。
My brother is doing his homework .
我的弟弟正在做他的作业。
他正在做他的家庭作业吗？
他正在做他的家庭作业。
He might be doing his homework now.
他也许正在做功课吧。
Jack seems to be doing his homework.
杰克好像正在做家庭作业。
He sings as he is doing his homework.
他一边写作业一边唱歌。
He is doing his homework at home now.
他现在正在家做作业。
He's doing his homework in his bedroom.
他在卧室里正做作业呢。
I saw him doing his homework just now.
我经常看见他写作业。
He has found itself doing his homework.
他一贯在做他的家庭作业。
He said he was doing his homework then.
他说他那时在做作业。
He fell asleep while doing his homework.
他做着做着功课就睡着了。
He is always slack in doing his homework.
他做作业总是马马虎虎。
Is Jim usually doing his homework at school?
吉姆通常在学校做作业吗？
He was doing his homework this time yesterday.
昨天的这个时候他正在做作业。
Doing his homework took up most of the weekend.
写作业占去了他周末的大半时间。
His mother kept him doing his homework all day.
他妈妈整天让他做家庭作业。
I came in when (while) he was doing his homework.
当他在做家庭作业时，我走了进来。
He doesn't spend much time in doing his homework.
他不花很多时间做作业。
He spends an hour doing his homework every night.
他每晚都花一小时的时间做作业。
He went to bed after he finished doing his homework.
做完家庭作业以后，他才上床睡觉。
His teacher reproached him for not doing his homework.
老师责备他不做作业。
His teacher reproached him for not doing his homework.
老师责备他不做作业。
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