[ahmed eldessoky]

1. He admitted that he lost my own bag.
2. The function of leaves is to produce food for the tree.
   
3. The function of the roots is to hold the tree securely in the ground.
4. Using a borer is accurate in calculating the age of the tree.
   
5. Could you give me the instructions of driving a car
6. If i hadn't fell ill, I would have completed the race
7. Unless he had been lazy, he wouldn't have lost his job.
8. If he didn't eat a lot , he wouldn't be fat.
9. If we hadn't been late we wouldn't have had to take a taxi
10. If i had had enough money , I wouldn't have bought only two shirts