What do you know about the River Nile?

W: Are there any long rivers in Africa?
M: Yes, for example, the River Nile is the longest fiver in the world.
W: Is it Egypt? I hear that it used to flood large areas. What about it today?
M: In order to control the flood and make electricity, people built the Aswan High Dam on the river.
W: Then it is another interesting place, isn’t it?