Odpowiedź:
1. If my dad’s car doesn't work (not work), he will go (go) to work by bus.
2. If you go (go) to the party, you will meet (meet) Alice’s brother.
3. I will write (write) to you at the weekend if I have (have) time.
4. If they don't leave (not leave) now, they won't catch (not catch) the plane.
5. If she gets (get) home late, her parents will be (be) angry.
6. We won't want (not want) dinner if we have (have) a meal on the plane.
7. He won't go (not go) to the party if she doesn't go (not go).
8. If you take (take) the game back to the shop, they will exchange (exchange) it for another.
9. I will be (be) hungry on the journey if I don't take (not take) a sandwich with me.
10. If we aren't (not be) carefull, we will pick (pick) up an illness
Szczegółowe wyjaśnienie:
W trybie warunkowym First conditional czasownik który mówi nam o warunku wyrażamy w Present Simple. Natomiast czasownik, który mówi nam co się stanie jeśli ten warunek będzie spełniony wyrażamy w Future Simple, czyli używająć will lub won't.