1. How far is it from your house to the bookstore?
2. Mai used to go to school on foot when she studied/was at primary school. 3. It is ten kilometers from the town to the airport. 4. Did you use to have a tricycle when you were a child.
5. It is not very far from Hanoi to Noibai Airport. 6. It takes him 30 minutes to draw this picture.
