_______, we would have prevented the catastrophe.
举一反三
- _______, we would have prevented the catastrophe. A: Had we known it earlier B: If we knew it earlier C: Did we know it earlier D: Unless we had known it earlier
- We have made（）that we would accept D/P terms for your present order.
- _______ care would have prevented the accident.
- ________ more care would have prevented such an accident.
- If my mother_____here last Funday, she _________me from going there.( ). A: were; prevent B: had been; would have prevented C: had been; would prevent D: were; would have prevented