Finish these sentences, taking care to use the correct tenses.
I - probable
If+ present simple, will/may/can +v(I)
imperative/ will +v(I) IF present simple

II - hypotetical
If +past simple, would+verb (I)
would+verb (I) IF past simple

1. If you ate less, you would lose your weight.(II)
2. We'll send for the doctor if you feel sick. (I)
3.If she practised more, she could become a world famous pianist.(II)
4. If there isn't enough wine in that bottle, we can buy another one. (I)
5. Try on the blue one if it is bigger. (I)
6. If these gates are locked, I'll open them for you.(I)
7. If we leave before breakfast, there is less traffic then. (0 conditional - general truth)
8. If the river rises any higher, we can go by boat. (I)
9. If the volcano starts erupting, the flight will be cancelled. (I)
10. The grass would look better if you put some fertilizers/manure (II)
11. Unless (if not) it is a nice day, we can go shopping.
12. If you don't put enough stamps on a letter, the person who gets it will  have to pay(I)
13. He would lend it to you if behaved straight towards him. (II)
14. Unless this hotel gets another cook, the hotel will be in trouble. (I)
15. If the storm becomes worse, we must stay inside and read books. (I)
16. If your uncle sees you, he will be happy. (I)
17. If you tried to climb it without a guide, you might get into a trouble. (II)
18. If (=as) you don't like the picture, I'll take a new one. (I)