—Do you know if Linda is willing to take charge of the program?—________,does it?
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.
The ability________an idea is as important as the idea itself.
He________an engineer by an oil company in the Middle East.