"It took me three hours to do the homework."
来源：这是一句简单的英语句子，句子的结构是：主语 + 过去式动词 + 宾语。
Example 1:
It took me three hours to finish the project. (完成这个项目花了我三个小时)
She said it took her two hours to complete the task. (她说完成这个任务花了她两个小时)
Example 2:
I spent three hours on the math problems. (我花了三个小时在数学题上)
He reported that it took him four hours to do the research. (他报告说研究花了他四个小时)