1. It turned out that the distance from the airport to the train station is 5 km.
2. We noticed how the goods were unloaded from the truck.
3. It is known that the combustion of oil generates more heat than the combustion of coal.
1. It turned out that the distance from the airport to the train station is 5 km.
2. We noticed how the goods were unloaded from the truck.
3. It is known that the combustion of oil generates more heat than the combustion of coal.