Decide which conditional it is, 0 or 1? Try to put the verbs in the correct

Decide which conditional it is, 0 or 1? Try to put the verbs in the correct
form.
1. If you ..................(drop) an apple, it ..................(fall).
2. I ..................(get) tired if I ..................(work) too much.
3. Water ..................(boil) if you ..................(heat) it to 100 C
4. I ...................................(phone) my friend if I ..................(have time today.
5. If you ..................(freeze) water, it ..................(turn) into ice.
6. If it ..................(rain) today, I ........................................(stay) at home.
7. If I ..................(see) you tomorrow, I ....................................(buy) you a drink.
8. We................................. (go) to the beach if it.................. (be) warm tomorrow