Используем Present Simple или Future Simple в зависимости от контекста предложения.
- If the food is good, we'll come here again.
- What will you do if Ann doesn't pay?
- When I arrive, I will phone you.
- You will help me if I have a problem?
- Before you go, leave my key on the table.
- If you do not pay, you'll get into trouble.
- As soon as Linda arrives, call me.
- What you will say if Peter asks?
- If you don't go away, I will call the police!
- I will not wait if he is late again.
- If he misses the last train, he'll spend the night in a hotel.
- What will you do if the weather is bad on holiday?
- If I stay here, I will not be happy.
- If I am unhappy, I won't work hard.
- She'll have some German lessons before she goes to Berlin.
- If Peter rings, tell him I will never see him again.
- He will be happy if he wins his next match.
- She won't be able to go until she feels much better.
- If the bus does not come soon, I'll be late for school.
- I want to speak to him before he goes out.
Ответ: (см. решение выше)