1. If you *heat* water, it *boils*.
Hint: Present simple in entrambe le proposizioni (“scaldare l’acqua”, “bollire”).
2. If people *eat* too much, they *get* fat.
Hint: Present simple, “mangiare troppo” – “diventare grassi”.
3. If you *touch* fire, you *get* burned.
Hint: Routine o regola generale, entrambi i verbi al present simple.
4. If it *rains*, the grass *grows*.
Hint: Verbo “rain” e “grow” al present simple.
5. If babies *are* hungry, they *cry*.
Hint: “Be” e “cry” al present simple (fatto generico).
6. If you *don’t water* plants, they *die*.
Hint: Negazione e affermazione di routine o fatto naturale.
7. If you *press* this button, the computer *turns* on.
Hint: Azione automatica, routine, present simple.
8. If students *study*, they *pass* the exam.
Hint: Routine di studio, entrambi present simple.
9. If water *reaches* 0°C, it *freezes*.
Hint: Legge scientifica, present simple.
10. If I *have* free time, I *read* books.
Hint: Azioni generali/routine, entrambi present simple.

1. If I *wake* up late, I *miss* the bus.
Hint: Routine; present simple di “wake up” e “miss”.
2. If people *don’t brush* their teeth, they *get* cavities.
Hint: Negazione e conseguenza al present simple.
3. If the sun *shines*, it *gets* hot.
Hint: “Shine” e “get” al present simple.
4. If the phone *rings*, I *answer* it.
Hint: Routine, entrambi i verbi present simple.
5. If you *mix* red and blue, you *get* purple.
Hint: Fatti universali, present simple.
6. If children *drink* coffee, they *can’t sleep*.
Hint: “Drink” present simple, conseguenza negativa “can’t sleep”.
7. If you *don’t exercise*, you *feel* tired.
Hint: Negazione riguardo lo sport, conseguenza “feel”.
8. If you *leave* bread outside, it *gets* dry.
Hint: Routine, present simple entrambi.
9. If I *have* a problem, I *talk* to my teacher.
Hint: Routine; present simple.
10. If Mark *drives* too fast, he *gets* a ticket.
Hint: Abitudine o conseguenza, present simple.