If I had known that, I ____ (answer) differently.
举一反三
- ______ the result, I would not have asked you to tell me. A: If I know B: Had I known C: I had known D: If I knew
- It could have saved me some trouble （） about it. A: had I known B: I had known C: did I know D: I knew
- —The bus should take one hour and a half to get to the airport! I almost missed the flight! —______ you were leaving today, I would have drove you there. A: Have I known B: I have known C: Had I known D: I had known
- Had I known her name, （ ）
- _______ known your number , I would have telephone you . A: I had B: I have C: If I have D: Had I