A．It is a historical monument.
B．It was built in ancient times.
C．It is Indians' sacred place for worship.
D．It was created by supernatural powers.

A．By sheltering them in a cave.
B．By killing the attacking bears.
C．By lifting them well above the ground.
D．By taking them to the top of a mountain.

A．They will buy something from the convenience stores.
B．They will take advantage of the time to rest a while.
C．They will have their vehicles washed or serviced.
D．They will pick up some souvenirs or gift items.