it spent half an hour working out the pysics problem.(保持原意)

it spent half an hour working out the pysics problem.(保持原意)
it ______ half an hour _____ him _____ _______out the physics problem.
the physics problem________him half an hour
it takes sb.sometime to do sth.不是固定搭配么?为什么能用take ...for?
还有spent的主语不是人么?it 后应该不能用spent吧?
英语人气:326 ℃时间:2019-08-19 01:09:53
优质解答
tooks/for/to work costedit takes sb.sometime to do sth的确是固定搭配.这里的 for 不是跟take搭配着当词组用的.你可以把它当做一个插入语就像你可以把to me,it is important to do this 写成it is important for ...
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