1.We spend too much money on electricity because we have four air conditioner in our house
->If we had fewer air conditioner in our house, We wouldn't spend____
2.we can't give much help to the poor because we waste a lot of money on unnecessary things ->If we didn't waste a lot of money____, we couldn't___
3.without this treatment the patient would have died
->If it hadn't been for this treatment____
4. He was late because he missed the train
->If he hadn't missed____, he wouldn't have been late
5. She can't walk without help so she doesn't go out very often
-> If she could walk___, she would go___
6. There will be a shortage of water unless it rains
->If it doesn't rain, there will____
7. Unless someone has a key, we can't get into the house
->We can only get into___ if someone___
8. Without gravity, water couldn't run down hill
-> Water couldn't run down hill if there was no gravity
9. I studied hard, so I passed the final examination
->If I hadn't studied hard, I wouldn't have passed______
10. I didn't tell you because you didn't ask me
->If you had asked me, I would have___
11. As I haven't got money, I can't buy a new car
->If I had got money, I would buy____
12. I lost my watch and as a result, we missed our plane when we went on holiday
->If I hadn't lost___, we wouldn't have___