英语It took me an hour to send an e-mail for my pal,转换成---- --

It 在这里是形式主语,其实无实际意思.整句翻译：给我笔友发邮件花了我一个钟头.转换成疑问句便是：做什么花费了你一个钟头?若用 What did I take you an hour?不仅不符合语法习惯也翻译不通.其实It 不用管它,主句是这样子的 Sending an e-mail for my pal took me an hour.写成It took me ...一时为了强调,而是当主语太长时要用it 代替做形式主语,