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11. If he could park near his office, he would come by car.
12. If my house weren't guarded by two big dogs, it would be broken into every night.
13. If the flats were clearly numbered, it wouldn't be very difficult to find anyone.
14. If I knew her e-mail address, I could tell you.
15. If she didn't work in the evening, she would have time to play with her children.
16. They would be upset if I decided to tell them what happened.
17. If I were tall, I would join the basketball team.
18. If he saw the signal, he would stop his car.
19. If Peter prepared his lessons well, he wouldn't get bad marks.
20. If Mary had enough money, she could buy a new car.
21. If you don't go right now, you'll be late for the train.
22. If he had enough qualifications, he would apply for the job.
23. If we don't hurry up, we will be late for the exam.
24. If you often talked to them, they would understand you.
25. If you didn't speak English unnaturally, they would understand you.