Uzupełnij luki w zdaniach używając czasowników w odpowiedniej formie.
1. If the train arrives late, passengers often (get) frustrated. 2. If he (not waste) so much time, he would finish his work earlier. 3. If I had taken a different route, I (avoid) the traffic jam yesterday. 4. If the shop (not restock) soon, we'll have to go elsewhere. 5. If he (speak) more clearly, everyone would have understood his point last night. 6. If the plane is delayed, what (happen) to our connecting flight tomorrow? 7. If I knew her address, I (send) her an invitation. 8. If they (plant) more trees, the park would have looked much greener last year. 9. If the bell (not ring) at 8:00, students think there's a problem with the clock. 10. If the computer system (crash) , how will the company manage its orders?