1. He didn't hurry, so he missed the train.
=> If he hurried ,he couldn't miss the train
2. My brother didn't leave the car keys, so I couldn't pick him up t the station.
=> If my brother left the car keys ,i could pick him ....
=> If it hadn't
4.We didn't go on holiday because we didn't have enough money.
=> If we had enough money we could go on holiday
5. Susan felt sick because she ate four cream cakes.
=>If Susan didn't eat four cream cakes , she couldn't feel sick
6. Without this treatment, the patined would have died.
=> If he
7. We got lost because we didn't have a map.
=> If we had a map , we couldn't loost
8. He lost his job because he was late every day.
=> If he wasn't late everyday, he couldn't loost his job
9. Peter is fat because he eats so many chips
=> If he didn't too many chips , he couldn't fat
10. Robert got abad cough because he started smoking cigarettes.
=> If Robert.didn't start smoking cigarette , he couldn't have a bad cough