He spent two hours in cleaning his bed room yesterday.→

问题描述:

He spent two hours in cleaning his bed room yesterday.→
He spent two hours in cleaning his bed room yesterday.变同义句.It_____ _____two hours_____ _____his bedroom yesterday“____”中为什么填took,me,to,clean?

take sb time to do sth = sb spend time in doing sth
花费时间做