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7. If my brother had left the car keys, I could have put him up at the station
8. If he had known the rive was very dangerous, I wouldn't have tried to swim accross it
9. If she hadn't slept late last night, she wouldn't have yawmed the whole day
10. If you hadn't sneezed, he wouldn't have known that we were there
11. If I had relized what a bad driver you were, I wouldn't have come with you
12. If you had shut the door, the hens wouldn't have got into the house
13. If you hadn't been in such a hurry, you wouldn't have put sugar into the sauce instead of salt
14. If you had looked at the engine, you wouldn't have what seen was missing
15. If you had obeyed my instructions, you wouldn't have got into trouble
16. If you told me that he has never paid his debts, I wouldn't lend him money
17. If we didn't live in a big city, we could not get access to the Internet easily
18. If i stayed at home, I would be lying on my bed now
19. If I knew Greek, I could tell you what this means