请大家帮忙一下
“我花了一个小时做作业” 这句话用英语怎么说？

I have spent an hour doing one's assignment

It takes one hour to do my assignment.

这个我知道,我们老师讲了好多次了,I spent an hour (in) doing the homework. 或者就 I spent an hour on the homework 或者就It took me an hour to do the homework.  do the homework改成finish the homework应该也对

哇噻。。。
佩服楼上的
请问，你在哪里学啊？