题目内容：

He spends two hours doing his homework(同意转换 ）

优质解答

同义句是：
It takes him two hours to do his homework
句型it takes sb some time to do sth=sb spends some time (in) doing sth
句子翻译是：他花两小时做他的家庭作业
do one's homework：做某人的家庭作业