Zero and First Conditional

If you _________ your homework in time, you'll watch that film on TV.

If people eat too much, they ...... fat.

If I ______ my homework, I will come out with you.

If we cycle to school, we ____ some exercise.

You ...... water if you mix hydrogen and oxygen.

If my husband (cook) , he (burn) the food.

If you (heat) ice, it (melt).

My daughter (pass) her exams if she (work) hard.

If I __________ (not go) out this morning, I ___________ (clean) the house.

If they _____________ (not arrive) soon, I _____________ (be) angry.

The river (freeze) if it (be) very cold.

 I (feel) good the next day if I (go) to bed early.