1. if we recycle, we'll save natural resources

2. if you aren't careful, you'll fall over the rocks

3. if you work too much, you'll feel tired

4. if you are careless, you'll break the vase

5. if Ha works hard, she can pass the exam

6. if he buys recycles products, he can do a part to save the environment

7. if we put garbage into the bins, we'll minimize pollution

8. if we take the map with us, we'll not lose our way on the street

9. if Ellen gives it back next week, she can borrow it

10. if the authorities raise the petrol prices, I'll have to cycle to work

1. If we recycle, we'll save natural resources

2. If you are careful, you won't fall over the rocks

3. If you work too much, you will be tired

4. If you are careless, you'll break the vase

5. If Ha works hard, she can pass the exam

6. If he buys recycled products, he can do a part to save the environment

7. If you put garbage into the bins, you'll minimize pollution

8. If we take the map with us, we won't lose our way on the street

9. If Ellen borrows it, she'll give it back next week

10. If the authorities raise the petrol prices, I'll have to cycle to work