Ответ:
1. Make sure your bike is in good condition.
2. We're going on a boat tour this afternoon.
3. Are we able to cross the river by boat?
4. Askar missed the bus to school, so he went on foot.
5. You must be at least 17 years old to drive.
6. You should pick up any rubbish that is on the ground.
Объяснение: