(Zero) If you ______________ (heat) water to 100º, it ____________. (boil)
If you heat water to 100º, it boils.
(Type 1) If you _____________ with your friends tonight, I ____________ the football match on TV. (go out / watch)
If you go out with your friends tonight, I will watch the football match on TV.
(Type 1) Come on! If you ___________, we ____________ late. (hurry up / not be)
Come on! If you hurry up, we won't be late.