Раскройте скобки: 1. If you pass your exam, we (have) a

Раскройте скобки:
1. If you pass your exam, we (have) a celebration.
2. What (happen) if I press this button?
3. You would play better if you (not talk) so much.
4. If you go to Paris, where you (stay)?
5. If someone offered to buy you one of those rings, which you (choose)?
6. Someone (sit) on your glasses if you leave them there.
7. I would repair the roof myself if I (have) a long ladder.
8. If he were in, he (answer) the phone.
9. If I have enough apples, I (bake) an apple pie this afternoon.
10. If I had enough apples, I (bake) an apple pie this afternoon.
11. If the weather is nice tomorrow, we (go) to the zoo.
12. If the weather were nice today, we (go) to the zoo.
13. Its too bad Helen isnt here. If she (be) here, she (know) what to do.
14. You should tell your father exactly what happened. If I (be) you, I (tell) him the truth as soon as possible.
15. If the teacher (be) absent tomorrow, class will be cancelled.
16. That sounds like a good job offer. If I (be) you, I (accept) it.
17. This flat would be all right if the people above us (not be) so noisy.
18. Tell him to bring his bicycle inside. If he (leave) it outside someone (steal) it.
19. The only thing I havent got is a balcony. If I (have) a balcony I (grow) plants in pots. Then my flat (be) perfect!
20. Be careful about the time. If you (spend) too long on the first question you (not have) enough time to do the others properly.