It takes me 1 hour to finish my homework.
I spend 1 hour on finishing my homework.
这两种说法都是，希望对你有帮助~
I spent 1 hour on finishing my homework.
请参考，谢谢。
I finished my homework in one hour.
I spend one hour finishing my homework.
It took me one hour to finish the homework.
The homework took me an hour.
spend 时间/金钱 on sth
spend 时间(in) doing sth
It costs me one hour to finish my homework.
I spent one hour in finishing my homework.
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