二、单项选择1. The of the Itaipu Dam took 30 000 people seven years.
Paper produced every year isthe world’s production of vehicles.
of the land in that districtcovered with trees and grass.
people in the world are sending information by E-mail every day.
The young dancers looked so charming in their beautiful clothes that we tookpictures of them.
He did itit took me.