问题描述：
做几道英语题哈
找出错误并改正
1.He spends one hour to do the homework every day.
2.My mother was reading when my sisters were listening to music.
3.I was playing computer games while there was a knock on the door.
找出错误并改正
1.He spends one hour to do the homework every day.
2.My mother was reading when my sisters were listening to music.
3.I was playing computer games while there was a knock on the door.
问题解答：
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