Frank would be in prison right now had it not been for your warning years ago.
如果不是因為你幾年前的警告,Frank現在可能在監獄裡。
prison 監獄
與過去事實相反but for = if it had not been for (Had it not been for)與現在事實相反but for = if it were not for (Were it not for)
22. Frank would be in prison right now _..-阿摩線上測驗