San Francisco has been called one of the most beautiful cities in the ***.It is built on fourteen hills,with Pacific Ocean on one side,and San Francisco Bay on the other.Each hill has a view over the water.People of San Francisco are proud of their views.Everyone wants a house with a view. Most big cities in the USA are built on flat land.People can't see very far.They can only see tall buildings.When they choose their homes,they look inside.They want a house with pleasant rooms to look at.When people in San Fracisco choose their homes, they look outside.They want a house with a view.回答问题: