1. when ( do/will ) our classes start tomorrow? 2. the train from liverpool ( arrives/will arrive ) at 7: 30. 3. i don't think the train ( arrives/will arrive ) on time. 4. i ( will apologize/apologize ) if you ( will explain/explain ) to me why i should. 5. i ( will play/am playing ) football tomorrow. 6. i ( will promise/promise ) i ( will phone/phone ) my granny. 7. we ( will go/are going ) to st. petersburg soon. 8. what time ( does/will ) the bus arrive in cardiff? 9. alee ( is going to write/is writing ) a letter to his parents in the evening. 10. we are having a party on saturday night. ( will you come/are you coming )?