It took him half an hour to go to work（保持句意不变）
问题描述：
It took him half an hour to go to work（保持句意不变）
_________ ____________half an hour________ to work.
He prefers wood and glass.（保持句意不变）
He_______ wood______than glass.
答
楼主第二题and 应该是 to 吧.
He spent half an hour going to work.(spent some time(in)doing .sth.in可省略)
He likes wood better than glass.（like sth.better than sth = perfer sth to sth.)