来源：互联网 2012-04-06 00:00
676. What would you have done last night if you hadn't had to study?
677. I would have gone on the picnic if it hadn't rained.
678. If you had gotten up earlier, you would have had time for breakfast.
679. If I had had time, I would have called you.
680. Would he have seen you if you hadn't waved to him?
681. If he had only had enough money, he would have bought that house.
682. I wish you had called me back the next day, as I had asked you to.
683. If you hadn't slipped and fallen, you wouldn't have broken your leg.
684. If I had known you wanted to go, I would have called you.
685. Had I known you didn't have a key, I wouldn't have locked the door.
686. She would have gone with me, but she didn't have time.
687. If I had asked for directions, I wouldn't have gotten lost.
688. Even if we could have taken a vacation, we might not have wanted to.
689. Everything would have been all right if you hadn't said that.
690. Looking back on it, I wish we hadn't given in so easily.