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 hourit takes sb.sometime to do sth.不是固定搭配么？为什么能

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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 hourit takes sb.sometime to do sth.不是固定搭配么？为什么能

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 hourit takes sb.sometime to do sth.不是固定搭配么？为什么能
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？

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 hourit takes sb.sometime to do sth.不是固定搭配么？为什么能
tooks/for/to work
costed
it 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 me to do this.
这里有些例句.
It took half an hour for the substance to be salted out.
花了半个小时这种物质才盐析出来.
After the explosion,it only took half an hour for the ship to go under.
这艘船一声爆炸,半小时后就沉没了.
哎,有些东西要意会啊..

took of to work
took/costed

took/ for/ to work
cost

took(过去时）;for（对于某人来说）;to work（句型SOMETHING TAKES SB. TO DO STH.);cost（过去时）

took/of/to work
costed

took for; to figure / to work 也可以，但是在加拿大课堂上，洋人老师会用figure out作为一个替换。
cost
take 为一般现在是
而took 是 take 的一般过去时
因为这里表示题已经解出来，所以要用过去时表示

We spent half an hour writing it.(%u63D0%u95EE%uFF09 he spent half an hour swim.=It( )( )half an hour( )( ). I spent half an hour_______my book. We spent half an hour writing it.(提问）____ ____ ____ you ____ writing it?(___代表空格） I spent half an hour cleaning my room.（同义句转换）It （ ）（ ）half an hour （ ）（ ）my room. it [ ] him half an hour to do te work.A spent B took C used D lent为什么 Yesterday it ___my mother half an hour __to the shopping mall.选什么?A spent,walking B took,to walking C spent,to walk Dtook,walking I spent half an hour ___(finish) my homework. I spent half an hour in doing my homework i spent half an month reading the book什么 He spent half an hour___computer games yesterday everyonekkkk they spent half an hour on talk是什么基本句型 I spent half an hour swimming 这句话对吗? it's half an hour Your MP3 is so nice.Hou much is it?It_____me 500.（bought、paid、spent、cost） Life is half spent before we know what it is. Life is half spent before weknow what it is It took him half an hour to take a train there(改为同义句）He half an hour a train there 除了用spent taking外,可以用paid