he spent half an hour swim.=It( )( )half an hour( )( ).
问题描述：
he spent half an hour swim.=It( )( )half an hour( )( ).
答
took him to swim
答
took him to swim
答
he spent half an hour swim.=It( took)(him )half an hour(for )(swimming ).
答
It took him half an hour for swimming
答
It took him half an hour to swim.
句型为： it takes sb. some time to do
答
he spent half an hour swimming.=It took him half an hour to swim。
答
he spent half an hour swimming.=It took him half an hour to swim.
take 表示花费的意思
答
he spent half an hour swim.=It( took)(him )half an hour(to )(swim). 固定句式It takes somebody some time to do sth