Zero conditionals.

1. If you ....(to drive) along the river bank it ... (to be) twenty miles out of your way.

If you ...(to take) your mobile phone into class, it ...(must) be turned off.

If you... (to push) this button, the volume...(to increase).

If you... (to close) the door, it...(to lock) automatically.

I... (to wear) my old boots when I...(to work).

When I... (to cook) salads, I...(to use) only olive oil.

When she... (to cook) salads, she...(to use) only olive oil.

 When my sister...(come) to town we...(go) to the cinema together.

If my kids...(run) in the playground they...(become) very thirsty.

 When you... (heat) ice, it (to melt)