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16. If Mary had worn the raincoat, she wouldn't have got a cold.
17. If the test hadn't been too difficult, I could have done it.
18. If Rober hadn't started smoking cigarettes, he wouldn't have got a bad cough.
19. If I had been hungry, I would have eaten something.
20. If the driver infront hadn't stopped suddenly, the accident wouldn't have happened.
21. If you had eaten breakfast, you wouldn't be hungry now.
22. If I hadn't stayed up late last night, I wouldn't feel asleep now.
23. If I had gone there last night, I could tell you about it now.
24. If he hadn't drunk too much yesterday evening, he wouldn't be tired now.
25. If Peter didn't eat a lot of chips, he wouldn't be fat.