Twofifths of the highway________so far.
A．has been completed B．was completed
C．have been completed D．has completed
I think whoever makes________contributions to the company than others should get________ income.
A．greater；the higher B．more greater；a higher
C．greater；the highest D．more greater；the highest
We are eating________vegetables per person today as they did in 1910.
A．more than twice B．as twice as many
C．twice as many as D．more than twice as many
Our foreign trade has________greatly in recent years .
A．grown B．increased C．broadened D．expanded
It seems that living green is ________easy and affordable. A small step makes a big difference.
A．exactly B．fortunately
C．surprisingly D．hardly
One third of the country________covered with trees and the majority of the citizens________black people.
A．is; are B．is; is C．are; are D．are; is
