Выберите правильный глагол: When (do/will) our classes start tomorrow? The train from Liverpool (arrives/will arrive)

1. When will our classes start tomorrow?2. The train from Liverpool arrives at 7:30.3. I don\'t think the train will arrive on time.4. I will apologize if you explain to me why I should.5. I am playing football tomorrow.5. I promise I will phone my granny.6. We are going to St. Petersburg some time soon.7. What time does the bus arrive in Cardiff?8. Alec is going to write a letter to his parents in the evening.9. We are having a party on Saturday night, will you come?