1. What can we do to reduce traffic congestion in big cities?
2. How far is it from your hotel to the train station?
3. It is not far from my house to school.
4. I think it is time to do something to traffic jams in vietnam
5. Mai used to go to school on foot when she was in primary school.
6. There are often traffc jams in rush hour in the city center
7. People didn't worry about use to traffic congestion in the past
8. It is compulson to wear a helmet when riding a motorbike in vietnam.
