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1. If she had a bicycle, she wouldn't have to walk to school.
2. If they behaved themselves, their parents would be happy about that.
3. If I were a rich businessman, I could afford to buy an expensive car.
4. I wouldn't have to stay at home if my parents allowed me to go.
5. If she paid attention to her cooking, the food wouldn't be horrible.
6. If he didn't waste so much time in games, he would make a good progress in his study.
7. If Lan spoke Englsh as well as you do, she would be happy.
8. If he didn't stay up late to watch football matches, he wouldn't feel very tired.
9. He wouldn't have many accidents if he drove carefully.
10. If my uncle knew how to drive, he would buy a car.

11. If Alan ate breakfast, he wouldn't overeat at lunch.
12. If I knew enough about the machine, I could mend it myself.
13. If it weren't always so crowded, I would ride the bus to work every morning.
14. If more money were spent on cancer research, a prevention would be found.
15. If the wind weren't blowing hard, I would take the boat out for a ride.
16. If Nick had a map, he could find the way.
17. If Schrooder didn't ignore Lucy, she wouldn't get angry at him.