—What have you been busy with these days? —I ______ that the speech contest has been brought forward, so I ______ for it.
Our foreign trade has________greatly in recent years .
It seems that living green is ________easy and affordable. A small step makes a big difference.
One third of the country________covered with trees and the majority of the citizens________black people.
It is ________ certain that all your classmates will be dressed________at the new year evening party.
We________John's name on the race list yesterday but for his recent injury.