[单项选择]How long will it take you if you go to Angel Falls by plane from Caracas
A. Several weeks.
B. Several months.
C. A few days.
D. Several hours.

Have you ever heard of Angel Falls(瀑布) It’s the highest waterfall in the world, deep in the jungles(丛林) of Venezuela. Few people have ever seen Angel Falls. It’s very hard to get there. If you went by land, you would have to travel for weeks through thick jungles. If you went by plane from Caracas, a city on the northern coast, it would take about four hours.
What would it be like to take a trip by plane from Caracas to the falls For hundreds of miles you would fly southeast over green plains. Then the land would become higher, and you would see mountains with forests. Soon the land would level out to high plateaus (高原). Finally, you would fly toward a deep canyon(峡谷) with steep, rocky sides. Suddenly you would see a silver thread in the distance. Then as your plane flew closer, you would see the waterfall more clearly. You would see water falling over a half a mile straight down the cliff. It is a sight you would never forget.
No one knew abou
A. A scientist named it Angel Falls.
B. It's named after an American pilot who first discovered it.
C. An American expedition named it Angel Falls.
D. No one knows.