it takes sb some time to do sth 应该是这个句型,表示,花费某人多少时间做某事如:it takes me two hours to do my homework.我花两小时做作业。
花费某人多长时间做某事的句型是:it takes sb. some time to do sth.
for去掉 某人花时间做...How long take it time do you to do housework tody ?
for去掉花费某人多长时间做...