He spends two hours doing his home work与He spds two hours do his homework后面打错了，是He spends two hours do his homework
问题描述：
He spends two hours doing his home work与He spds two hours do his homework
后面打错了，是He spends two hours do his homework
答
He spends two hours doing his homework 这句对 他花费两个小时的时间做作业
spend 。。。【in 】doing sth 花费时间金钱做某事
或者是 He spends two hours on his homework
spend 。。。on sth 一个意思
答
He spends two hours doing his home work.对
spend...(in) doing sth 表示：花费时间/金钱做某事.